WIP: Add border to message bubbles on Android 4.

This gets rid of all those pesky 9-Patch drawables

.gitignore

@@ -23,5 +23,6 @@ local.properties
 !.idea/codeStyles
 .gradle
 build/
+captures
 *.iml
 projectFilesBackup/

.idea/runConfigurations/All_tests.xml

@@ -21,6 +21,7 @@
     <method>
       <option name="RunConfigurationTask" enabled="true" run_configuration_name="All tests in bramble-api" run_configuration_type="AndroidJUnit" />
       <option name="RunConfigurationTask" enabled="true" run_configuration_name="All tests in bramble-core" run_configuration_type="AndroidJUnit" />
+      <option name="RunConfigurationTask" enabled="true" run_configuration_name="All tests in bramble-android" run_configuration_type="AndroidJUnit" />
       <option name="RunConfigurationTask" enabled="true" run_configuration_name="All tests in bramble-j2se" run_configuration_type="AndroidJUnit" />
       <option name="RunConfigurationTask" enabled="true" run_configuration_name="All tests in briar-core" run_configuration_type="AndroidJUnit" />
     </method>

.idea/runConfigurations/All_tests_in_bramble_android.xml

@@ -0,0 +1,23 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="All tests in bramble-android" type="AndroidJUnit" factoryName="Android JUnit">
+    <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
+    <module name="bramble-android" />
+    <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
+    <option name="ALTERNATIVE_JRE_PATH" />
+    <option name="PACKAGE_NAME" value="" />
+    <option name="MAIN_CLASS_NAME" value="" />
+    <option name="METHOD_NAME" value="" />
+    <option name="TEST_OBJECT" value="package" />
+    <option name="VM_PARAMETERS" value="-ea" />
+    <option name="PARAMETERS" value="" />
+    <option name="WORKING_DIRECTORY" value="file://$PROJECT_DIR$/bramble-android" />
+    <option name="ENV_VARIABLES" />
+    <option name="PASS_PARENT_ENVS" value="true" />
+    <option name="TEST_SEARCH_SCOPE">
+      <value defaultName="singleModule" />
+    </option>
+    <envs />
+    <patterns />
+    <method />
+  </configuration>
+</component>

bramble-android/build.gradle

@@ -8,8 +8,8 @@ android {
 	defaultConfig {
 		minSdkVersion 14
 		targetSdkVersion 26
-		versionCode 10012
-		versionName "1.0.12"
+		versionCode 10013
+		versionName "1.0.13"
 		consumerProguardFiles 'proguard-rules.txt'
 
 		testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -34,6 +34,14 @@ dependencies {
 
 	compileOnly 'javax.annotation:jsr250-api:1.0'
 
+	testImplementation project(path: ':bramble-api', configuration: 'testOutput')
+	testImplementation 'junit:junit:4.12'
+	testImplementation "org.jmock:jmock:2.8.2"
+	testImplementation "org.jmock:jmock-junit4:2.8.2"
+	testImplementation "org.jmock:jmock-legacy:2.8.2"
+	testImplementation "org.hamcrest:hamcrest-library:1.3"
+	testImplementation "org.hamcrest:hamcrest-core:1.3"
+
 	androidTestImplementation project(path: ':bramble-api', configuration: 'testOutput')
 	androidTestImplementation project(path: ':bramble-core', configuration: 'testOutput')
 	androidTestImplementation 'com.android.support.test:runner:1.0.2'
@@ -43,6 +51,10 @@ dependencies {
 
 dependencyVerification {
 	verify = [
+			'cglib:cglib:3.2.0:cglib-3.2.0.jar:adb13bab79712ad6bdf1bd59f2a3918018a8016e722e8a357065afb9e6690861',
+			'com.android.support.test:monitor:1.0.2:monitor-1.0.2.aar:38ef4fa98a32dc55550ff49bb36a583e178b3a9b830fcb8dcc27bfc4254bc2bc',
+			'com.android.support.test:runner:1.0.2:runner-1.0.2.aar:f04b9ae342975ba1cb3e4a06e13426e3e6b8a73faa45acba604493d83c9a4f00',
+			'com.android.support:support-annotations:27.1.1:support-annotations-27.1.1.jar:3365960206c3d2b09e845f555e7f88f8effc8d2f00b369e66c4be384029299cf',
 			'com.android.tools.analytics-library:protos:26.1.3:protos-26.1.3.jar:818c9f256f141d9dafec03a1aa2b94d240b2c140acfd7ee31a8b3e6c2b9479e3',
 			'com.android.tools.analytics-library:shared:26.1.3:shared-26.1.3.jar:7110706c7ada96c8b6f5ca80c478291bc7899d46277de2c48527e045442401a3',
 			'com.android.tools.analytics-library:tracker:26.1.3:tracker-26.1.3.jar:4155424bf2ce4872da83332579a1707252bc66cbd77c5144fdc4483d0f2e1418',
@@ -91,12 +103,16 @@ dependencyVerification {
 			'javax.annotation:jsr250-api:1.0:jsr250-api-1.0.jar:a1a922d0d9b6d183ed3800dfac01d1e1eb159f0e8c6f94736931c1def54a941f',
 			'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
 			'javax.xml.bind:jaxb-api:2.2.12-b140109.1041:jaxb-api-2.2.12-b140109.1041.jar:b5e60cd8b7b5ff01ce4a74c5dd008f4fbd14ced3495d0b47b85cfedc182211f2',
+			'junit:junit:4.12:junit-4.12.jar:59721f0805e223d84b90677887d9ff567dc534d7c502ca903c0c2b17f05c116a',
 			'net.sf.jopt-simple:jopt-simple:4.9:jopt-simple-4.9.jar:26c5856e954b5f864db76f13b86919b59c6eecf9fd930b96baa8884626baf2f5',
 			'net.sf.kxml:kxml2:2.3.0:kxml2-2.3.0.jar:f264dd9f79a1fde10ce5ecc53221eff24be4c9331c830b7d52f2f08a7b633de2',
+			'org.apache.ant:ant-launcher:1.9.4:ant-launcher-1.9.4.jar:7bccea20b41801ca17bcbc909a78c835d0f443f12d639c77bd6ae3d05861608d',
+			'org.apache.ant:ant:1.9.4:ant-1.9.4.jar:649ae0730251de07b8913f49286d46bba7b92d47c5f332610aa426c4f02161d8',
 			'org.apache.commons:commons-compress:1.12:commons-compress-1.12.jar:2c1542faf343185b7cab9c3d55c8ae5471d6d095d3887a4adefdbdf2984dc0b6',
 			'org.apache.httpcomponents:httpclient:4.2.6:httpclient-4.2.6.jar:362e9324ee7c697e21279e20077b52737ddef3f1b2c1a7abe5ad34b465145550',
 			'org.apache.httpcomponents:httpcore:4.2.5:httpcore-4.2.5.jar:e5e82da4cc66c8d917bbf743e3c0752efe8522735e7fc9dbddb65bccea81cfe9',
 			'org.apache.httpcomponents:httpmime:4.1:httpmime-4.1.jar:31629566148e8a47688ae43b420abc3ecd783ed15b33bebc00824bf24c9b15aa',
+			'org.beanshell:bsh:1.3.0:bsh-1.3.0.jar:9b04edc75d19db54f1b4e8b5355e9364384c6cf71eb0a1b9724c159d779879f8',
 			'org.bouncycastle:bcpkix-jdk15on:1.56:bcpkix-jdk15on-1.56.jar:7043dee4e9e7175e93e0b36f45b1ec1ecb893c5f755667e8b916eb8dd201c6ca',
 			'org.bouncycastle:bcprov-jdk15on:1.56:bcprov-jdk15on-1.56.jar:963e1ee14f808ffb99897d848ddcdb28fa91ddda867eb18d303e82728f878349',
 			'org.briarproject:jtorctl:0.3:jtorctl-0.3.jar:f2939238a097898998432effe93b0334d97a787972ab3a91a8973a1d309fc864',
@@ -106,17 +122,25 @@ dependencyVerification {
 			'org.glassfish.jaxb:jaxb-core:2.2.11:jaxb-core-2.2.11.jar:37bcaee8ebb04362c8352a5bf6221b86967ecdab5164c696b10b9a2bb587b2aa',
 			'org.glassfish.jaxb:jaxb-runtime:2.2.11:jaxb-runtime-2.2.11.jar:a874f2351cfba8e2946be3002d10c18a6da8f21b52ba2acf52f2b85d5520ed70',
 			'org.glassfish.jaxb:txw2:2.2.11:txw2-2.2.11.jar:272a3ccad45a4511351920cd2a8633c53cab8d5220c7a92954da5526bb5eafea',
+			'org.hamcrest:hamcrest-core:1.3:hamcrest-core-1.3.jar:66fdef91e9739348df7a096aa384a5685f4e875584cce89386a7a47251c4d8e9',
+			'org.hamcrest:hamcrest-library:1.3:hamcrest-library-1.3.jar:711d64522f9ec410983bd310934296da134be4254a125080a0416ec178dfad1c',
 			'org.jetbrains.kotlin:kotlin-reflect:1.2.0:kotlin-reflect-1.2.0.jar:4f48a872bad6e4d9c053f4ad610d11e4012ad7e58dc19a03dd5eb811f36069dd',
 			'org.jetbrains.kotlin:kotlin-stdlib-jre7:1.2.0:kotlin-stdlib-jre7-1.2.0.jar:c7a20fb951d437797afe8980aff6c1e5a03f310c661ba58ba1d4fa90cb0f2926',
 			'org.jetbrains.kotlin:kotlin-stdlib-jre8:1.2.0:kotlin-stdlib-jre8-1.2.0.jar:633524eee6ef1941f7cb1dab7ee3927b0a221ceee9047aeb5515f4cbb990c82a',
 			'org.jetbrains.kotlin:kotlin-stdlib:1.2.0:kotlin-stdlib-1.2.0.jar:05cfd9f5ac0b41910703a8925f7211a495909b27a2ffdd1c5106f1689aeafcd4',
 			'org.jetbrains.trove4j:trove4j:20160824:trove4j-20160824.jar:1917871c8deb468307a584680c87a44572f5a8b0b98c6d397fc0f5f86596dbe7',
 			'org.jetbrains:annotations:13.0:annotations-13.0.jar:ace2a10dc8e2d5fd34925ecac03e4988b2c0f851650c94b8cef49ba1bd111478',
+			'org.jmock:jmock-junit4:2.8.2:jmock-junit4-2.8.2.jar:f7ee4df4f7bd7b7f1cafad3b99eb74d579f109d5992ff625347352edb55e674c',
+			'org.jmock:jmock-legacy:2.8.2:jmock-legacy-2.8.2.jar:f2b985a5c08a9edb7f37612330c058809da3f6a6d63ce792426ebf8ff0d6d31b',
+			'org.jmock:jmock-testjar:2.8.2:jmock-testjar-2.8.2.jar:8900860f72c474e027cf97fe78dcbf154a1aa7fc62b6845c5fb4e4f3c7bc8760',
+			'org.jmock:jmock:2.8.2:jmock-2.8.2.jar:6c73cb4a2e6dbfb61fd99c9a768539c170ab6568e57846bd60dbf19596b65b16',
 			'org.jvnet.staxex:stax-ex:1.7.7:stax-ex-1.7.7.jar:a31ff7d77163c0deb09e7fee59ad35ae44c2cee2cc8552a116ccd1583d813fb4',
+			'org.objenesis:objenesis:2.1:objenesis-2.1.jar:c74330cc6b806c804fd37e74487b4fe5d7c2750c5e15fbc6efa13bdee1bdef80',
 			'org.ow2.asm:asm-analysis:5.1:asm-analysis-5.1.jar:a34658f5c5de4b573eef21131cc32cc25f7b66407944f312b28ec2e56abb1fa9',
 			'org.ow2.asm:asm-commons:5.1:asm-commons-5.1.jar:97b3786e1f55e74bddf8ad102bf50e33bbcbc1f6b7fd7b36f0bbbb25cd4981be',
 			'org.ow2.asm:asm-tree:5.1:asm-tree-5.1.jar:c0de2bbc4cb8297419659813ecd4ed1d077ed1dd5c1f5544cc5143e493e84c10',
 			'org.ow2.asm:asm-util:5.1:asm-util-5.1.jar:ee032c39ae5e3cd099148fbba9a2124f9ed613e5cb93e03ee0fa8808ce364040',
+			'org.ow2.asm:asm:5.0.4:asm-5.0.4.jar:896618ed8ae62702521a78bc7be42b7c491a08e6920a15f89a3ecdec31e9a220',
 			'org.ow2.asm:asm:5.1:asm-5.1.jar:d2da399a9967c69f0a21739256fa79d284222c223082cacadc17372244764b54',
 	]
 }

bramble-android/src/androidTest/java/org/briarproject/bramble/plugin/tor/BridgeTest.java

@@ -3,14 +3,15 @@ package org.briarproject.bramble.plugin.tor;
 import android.content.Context;
 import android.support.test.runner.AndroidJUnit4;
 
-import org.briarproject.bramble.DaggerIntegrationTestComponent;
-import org.briarproject.bramble.IntegrationTestComponent;
 import org.briarproject.bramble.api.event.EventBus;
+import org.briarproject.bramble.api.network.NetworkManager;
 import org.briarproject.bramble.api.plugin.BackoffFactory;
 import org.briarproject.bramble.api.plugin.duplex.DuplexPlugin;
 import org.briarproject.bramble.api.system.Clock;
 import org.briarproject.bramble.api.system.LocationUtils;
+import org.briarproject.bramble.test.BrambleAndroidIntegrationTestComponent;
 import org.briarproject.bramble.test.BrambleTestCase;
+import org.briarproject.bramble.test.DaggerBrambleAndroidIntegrationTestComponent;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -41,6 +42,8 @@ public class BridgeTest extends BrambleTestCase {
 	private final static Logger LOG =
 			Logger.getLogger(BridgeTest.class.getSimpleName());
 
+	@Inject
+	NetworkManager networkManager;
 	@Inject
 	EventBus eventBus;
 	@Inject
@@ -77,8 +80,8 @@ public class BridgeTest extends BrambleTestCase {
 
 	@Before
 	public void setUp() {
-		IntegrationTestComponent component =
-				DaggerIntegrationTestComponent.builder().build();
+		BrambleAndroidIntegrationTestComponent component =
+				DaggerBrambleAndroidIntegrationTestComponent.builder().build();
 		component.inject(this);
 
 		Executor ioExecutor = Executors.newCachedThreadPool();
@@ -87,7 +90,7 @@ public class BridgeTest extends BrambleTestCase {
 		SocketFactory torSocketFactory = SocketFactory.getDefault();
 
 		factory = new TorPluginFactory(ioExecutor, scheduler, appContext,
-				locationUtils, eventBus, torSocketFactory,
+				networkManager, locationUtils, eventBus, torSocketFactory,
 				backoffFactory, circumventionProvider, clock);
 	}
 

bramble-android/src/androidTest/java/org/briarproject/bramble/test/ApplicationModule.java

@@ -0,0 +1,20 @@
+package org.briarproject.bramble.test;
+
+import android.app.Application;
+import android.support.test.InstrumentationRegistry;
+
+import javax.inject.Singleton;
+
+import dagger.Module;
+import dagger.Provides;
+
+@Module
+class ApplicationModule {
+
+	@Provides
+	@Singleton
+	Application provideApplication() {
+		return (Application) InstrumentationRegistry.getTargetContext()
+						.getApplicationContext();
+	}
+}

bramble-android/src/androidTest/java/org/briarproject/bramble/test/BrambleAndroidIntegrationTestComponent.java

@@ -1,5 +1,6 @@
-package org.briarproject.bramble;
+package org.briarproject.bramble.test;
 
+import org.briarproject.bramble.BrambleAndroidModule;
 import org.briarproject.bramble.event.EventModule;
 import org.briarproject.bramble.plugin.PluginModule;
 import org.briarproject.bramble.plugin.tor.BridgeTest;
@@ -12,11 +13,13 @@ import dagger.Component;
 @Singleton
 @Component(modules = {
 		BrambleAndroidModule.class,
+		TestLifecycleModule.class,
+		ApplicationModule.class,
 		PluginModule.class,  // needed for BackoffFactory
 		EventModule.class,
 		SystemModule.class,
 })
-public interface IntegrationTestComponent {
+public interface BrambleAndroidIntegrationTestComponent {
 
 	void inject(BridgeTest init);
 

bramble-android/src/main/java/org/briarproject/bramble/BrambleAndroidModule.java

@@ -2,6 +2,7 @@ package org.briarproject.bramble;
 
 import android.app.Application;
 
+import org.briarproject.bramble.network.AndroidNetworkModule;
 import org.briarproject.bramble.plugin.tor.CircumventionProvider;
 import org.briarproject.bramble.plugin.tor.CircumventionProviderImpl;
 import org.briarproject.bramble.system.AndroidSystemModule;
@@ -12,6 +13,7 @@ import dagger.Module;
 import dagger.Provides;
 
 @Module(includes = {
+		AndroidNetworkModule.class,
 		AndroidSystemModule.class
 })
 public class BrambleAndroidModule {

bramble-android/src/main/java/org/briarproject/bramble/account/AndroidAccountManager.java

@@ -0,0 +1,108 @@
+package org.briarproject.bramble.account;
+
+import android.app.Application;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+
+import org.briarproject.bramble.api.account.AccountManager;
+import org.briarproject.bramble.api.crypto.CryptoComponent;
+import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.identity.IdentityManager;
+import org.briarproject.bramble.util.IoUtils;
+
+import java.io.File;
+import java.util.logging.Logger;
+
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+
+class AndroidAccountManager extends AccountManagerImpl
+		implements AccountManager {
+
+	private static final Logger LOG =
+			Logger.getLogger(AndroidAccountManager.class.getName());
+
+	private static final String PREF_DB_KEY = "key";
+
+	protected final Context appContext;
+	private final SharedPreferences prefs;
+
+	@Inject
+	AndroidAccountManager(DatabaseConfig databaseConfig,
+			CryptoComponent crypto, IdentityManager identityManager,
+			SharedPreferences prefs, Application app) {
+		super(databaseConfig, crypto, identityManager);
+		this.prefs = prefs;
+		appContext = app.getApplicationContext();
+	}
+
+	// Locking: stateChangeLock
+	@Override
+	@Nullable
+	protected String loadEncryptedDatabaseKey() {
+		String key = getDatabaseKeyFromPreferences();
+		if (key == null) key = super.loadEncryptedDatabaseKey();
+		else migrateDatabaseKeyToFile(key);
+		return key;
+	}
+
+	// Locking: stateChangeLock
+	@Nullable
+	private String getDatabaseKeyFromPreferences() {
+		String key = prefs.getString(PREF_DB_KEY, null);
+		if (key == null) LOG.info("No database key in preferences");
+		else LOG.info("Found database key in preferences");
+		return key;
+	}
+
+	// Locking: stateChangeLock
+	private void migrateDatabaseKeyToFile(String key) {
+		if (storeEncryptedDatabaseKey(key)) {
+			if (prefs.edit().remove(PREF_DB_KEY).commit())
+				LOG.info("Database key migrated to file");
+			else LOG.warning("Database key not removed from preferences");
+		} else {
+			LOG.warning("Database key not migrated to file");
+		}
+	}
+
+	@Override
+	public void deleteAccount() {
+		synchronized (stateChangeLock) {
+			super.deleteAccount();
+			SharedPreferences defaultPrefs = getDefaultSharedPreferences();
+			deleteAppData(prefs, defaultPrefs);
+		}
+	}
+
+	// Package access for testing
+	SharedPreferences getDefaultSharedPreferences() {
+		return PreferenceManager.getDefaultSharedPreferences(appContext);
+	}
+
+	// Locking: stateChangeLock
+	private void deleteAppData(SharedPreferences... clear) {
+		// Clear and commit shared preferences
+		for (SharedPreferences prefs : clear) {
+			if (!prefs.edit().clear().commit())
+				LOG.warning("Could not clear shared preferences");
+		}
+		// Delete files, except lib and shared_prefs directories
+		File dataDir = new File(appContext.getApplicationInfo().dataDir);
+		File[] children = dataDir.listFiles();
+		if (children == null) {
+			LOG.warning("Could not list files in app data dir");
+		} else {
+			for (File child : children) {
+				String name = child.getName();
+				if (!name.equals("lib") && !name.equals("shared_prefs")) {
+					IoUtils.deleteFileOrDir(child);
+				}
+			}
+		}
+		// Recreate the cache dir as some OpenGL drivers expect it to exist
+		if (!new File(dataDir, "cache").mkdir())
+			LOG.warning("Could not recreate cache dir");
+	}
+}

bramble-android/src/main/java/org/briarproject/bramble/network/AndroidNetworkManager.java

@@ -0,0 +1,142 @@
+package org.briarproject.bramble.network;
+
+import android.app.Application;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+
+import org.briarproject.bramble.api.event.EventBus;
+import org.briarproject.bramble.api.lifecycle.Service;
+import org.briarproject.bramble.api.network.NetworkManager;
+import org.briarproject.bramble.api.network.NetworkStatus;
+import org.briarproject.bramble.api.network.event.NetworkStatusEvent;
+import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
+import org.briarproject.bramble.api.system.Scheduler;
+
+import java.util.concurrent.Future;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.logging.Logger;
+
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+
+import static android.content.Context.CONNECTIVITY_SERVICE;
+import static android.content.Intent.ACTION_SCREEN_OFF;
+import static android.content.Intent.ACTION_SCREEN_ON;
+import static android.net.ConnectivityManager.CONNECTIVITY_ACTION;
+import static android.net.ConnectivityManager.TYPE_WIFI;
+import static android.os.Build.VERSION.SDK_INT;
+import static android.os.PowerManager.ACTION_DEVICE_IDLE_MODE_CHANGED;
+import static java.util.concurrent.TimeUnit.MINUTES;
+import static java.util.concurrent.TimeUnit.SECONDS;
+import static java.util.logging.Level.INFO;
+
+@MethodsNotNullByDefault
+@ParametersNotNullByDefault
+class AndroidNetworkManager implements NetworkManager, Service {
+
+	private static final Logger LOG =
+			Logger.getLogger(AndroidNetworkManager.class.getName());
+
+	// See android.net.wifi.WifiManager
+	private static final String WIFI_AP_STATE_CHANGED_ACTION =
+			"android.net.wifi.WIFI_AP_STATE_CHANGED";
+
+	private final ScheduledExecutorService scheduler;
+	private final EventBus eventBus;
+	private final Context appContext;
+	private final AtomicReference<Future<?>> connectivityCheck =
+			new AtomicReference<>();
+	private final AtomicBoolean used = new AtomicBoolean(false);
+
+	private volatile BroadcastReceiver networkStateReceiver = null;
+
+	@Inject
+	AndroidNetworkManager(@Scheduler ScheduledExecutorService scheduler,
+			EventBus eventBus, Application app) {
+		this.scheduler = scheduler;
+		this.eventBus = eventBus;
+		this.appContext = app.getApplicationContext();
+	}
+
+	@Override
+	public void startService() {
+		if (used.getAndSet(true)) throw new IllegalStateException();
+		// Register to receive network status events
+		networkStateReceiver = new NetworkStateReceiver();
+		IntentFilter filter = new IntentFilter();
+		filter.addAction(CONNECTIVITY_ACTION);
+		filter.addAction(ACTION_SCREEN_ON);
+		filter.addAction(ACTION_SCREEN_OFF);
+		filter.addAction(WIFI_AP_STATE_CHANGED_ACTION);
+		if (SDK_INT >= 23) filter.addAction(ACTION_DEVICE_IDLE_MODE_CHANGED);
+		appContext.registerReceiver(networkStateReceiver, filter);
+
+	}
+
+	@Override
+	public void stopService() {
+		if (networkStateReceiver != null)
+			appContext.unregisterReceiver(networkStateReceiver);
+	}
+
+	@Override
+	public NetworkStatus getNetworkStatus() {
+		ConnectivityManager cm = (ConnectivityManager)
+				appContext.getSystemService(CONNECTIVITY_SERVICE);
+		assert cm != null;
+		NetworkInfo net = cm.getActiveNetworkInfo();
+		boolean connected = net != null && net.isConnected();
+		boolean wifi = connected && net.getType() == TYPE_WIFI;
+		return new NetworkStatus(connected, wifi);
+	}
+
+	private void updateConnectionStatus() {
+		eventBus.broadcast(new NetworkStatusEvent(getNetworkStatus()));
+	}
+
+	private void scheduleConnectionStatusUpdate(int delay, TimeUnit unit) {
+		Future<?> newConnectivityCheck =
+				scheduler.schedule(this::updateConnectionStatus, delay, unit);
+		Future<?> oldConnectivityCheck =
+				connectivityCheck.getAndSet(newConnectivityCheck);
+		if (oldConnectivityCheck != null) oldConnectivityCheck.cancel(false);
+	}
+
+	private class NetworkStateReceiver extends BroadcastReceiver {
+
+		@Override
+		public void onReceive(Context ctx, Intent i) {
+			String action = i.getAction();
+			if (LOG.isLoggable(INFO)) LOG.info("Received broadcast " + action);
+			updateConnectionStatus();
+			if (isSleepOrDozeEvent(action)) {
+				// Allow time for the network to be enabled or disabled
+				scheduleConnectionStatusUpdate(1, MINUTES);
+			} else if (isApEvent(action)) {
+				// The state change may be broadcast before the AP address is
+				// visible, so delay handling the event
+				scheduleConnectionStatusUpdate(5, SECONDS);
+			}
+		}
+
+		private boolean isSleepOrDozeEvent(@Nullable String action) {
+			boolean isSleep = ACTION_SCREEN_ON.equals(action) ||
+					ACTION_SCREEN_OFF.equals(action);
+			boolean isDoze = SDK_INT >= 23 &&
+					ACTION_DEVICE_IDLE_MODE_CHANGED.equals(action);
+			return isSleep || isDoze;
+		}
+
+		private boolean isApEvent(@Nullable String action) {
+			return WIFI_AP_STATE_CHANGED_ACTION.equals(action);
+		}
+	}
+}

bramble-android/src/main/java/org/briarproject/bramble/network/AndroidNetworkModule.java

@@ -0,0 +1,21 @@
+package org.briarproject.bramble.network;
+
+import org.briarproject.bramble.api.lifecycle.LifecycleManager;
+import org.briarproject.bramble.api.network.NetworkManager;
+
+import javax.inject.Singleton;
+
+import dagger.Module;
+import dagger.Provides;
+
+@Module
+public class AndroidNetworkModule {
+
+	@Provides
+	@Singleton
+	NetworkManager provideNetworkManager(LifecycleManager lifecycleManager,
+			AndroidNetworkManager networkManager) {
+		lifecycleManager.registerService(networkManager);
+		return networkManager;
+	}
+}

bramble-android/src/main/java/org/briarproject/bramble/plugin/tcp/AndroidLanTcpPlugin.java

@@ -1,15 +1,16 @@
 package org.briarproject.bramble.plugin.tcp;
 
-import android.content.BroadcastReceiver;
 import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
 import android.net.ConnectivityManager;
 import android.net.Network;
 import android.net.NetworkInfo;
 import android.net.wifi.WifiInfo;
 import android.net.wifi.WifiManager;
 
+import org.briarproject.bramble.PoliteExecutor;
+import org.briarproject.bramble.api.event.Event;
+import org.briarproject.bramble.api.event.EventListener;
+import org.briarproject.bramble.api.network.event.NetworkStatusEvent;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.plugin.Backoff;
 import org.briarproject.bramble.api.plugin.duplex.DuplexPluginCallback;
@@ -20,7 +21,6 @@ import java.net.Socket;
 import java.net.UnknownHostException;
 import java.util.Collection;
 import java.util.concurrent.Executor;
-import java.util.concurrent.ScheduledExecutorService;
 import java.util.logging.Logger;
 
 import javax.annotation.Nullable;
@@ -28,21 +28,13 @@ import javax.net.SocketFactory;
 
 import static android.content.Context.CONNECTIVITY_SERVICE;
 import static android.content.Context.WIFI_SERVICE;
-import static android.net.ConnectivityManager.CONNECTIVITY_ACTION;
 import static android.net.ConnectivityManager.TYPE_WIFI;
-import static android.net.wifi.WifiManager.EXTRA_WIFI_STATE;
 import static android.os.Build.VERSION.SDK_INT;
 import static java.util.Collections.emptyList;
 import static java.util.Collections.singletonList;
-import static java.util.concurrent.TimeUnit.SECONDS;
 
 @NotNullByDefault
-class AndroidLanTcpPlugin extends LanTcpPlugin {
-
-	// See android.net.wifi.WifiManager
-	private static final String WIFI_AP_STATE_CHANGED_ACTION =
-			"android.net.wifi.WIFI_AP_STATE_CHANGED";
-	private static final int WIFI_AP_STATE_ENABLED = 13;
+class AndroidLanTcpPlugin extends LanTcpPlugin implements EventListener {
 
 	private static final byte[] WIFI_AP_ADDRESS_BYTES =
 			{(byte) 192, (byte) 168, 43, 1};
@@ -60,25 +52,23 @@ class AndroidLanTcpPlugin extends LanTcpPlugin {
 		}
 	}
 
-	private final ScheduledExecutorService scheduler;
-	private final Context appContext;
+	private final Executor connectionStatusExecutor;
 	private final ConnectivityManager connectivityManager;
 	@Nullable
 	private final WifiManager wifiManager;
 
-	@Nullable
-	private volatile BroadcastReceiver networkStateReceiver = null;
 	private volatile SocketFactory socketFactory;
 
-	AndroidLanTcpPlugin(Executor ioExecutor, ScheduledExecutorService scheduler,
-			Backoff backoff, Context appContext, DuplexPluginCallback callback,
-			int maxLatency, int maxIdleTime) {
+	AndroidLanTcpPlugin(Executor ioExecutor, Context appContext,
+			Backoff backoff, DuplexPluginCallback callback, int maxLatency,
+			int maxIdleTime) {
 		super(ioExecutor, backoff, callback, maxLatency, maxIdleTime);
-		this.scheduler = scheduler;
-		this.appContext = appContext;
+		// Don't execute more than one connection status check at a time
+		connectionStatusExecutor =
+				new PoliteExecutor("AndroidLanTcpPlugin", ioExecutor, 1);
 		ConnectivityManager connectivityManager = (ConnectivityManager)
 				appContext.getSystemService(CONNECTIVITY_SERVICE);
-		if (connectivityManager == null) throw new AssertionError();
+		assert connectivityManager != null;
 		this.connectivityManager = connectivityManager;
 		wifiManager = (WifiManager) appContext.getApplicationContext()
 				.getSystemService(WIFI_SERVICE);
@@ -89,19 +79,12 @@ class AndroidLanTcpPlugin extends LanTcpPlugin {
 	public void start() {
 		if (used.getAndSet(true)) throw new IllegalStateException();
 		running = true;
-		// Register to receive network status events
-		networkStateReceiver = new NetworkStateReceiver();
-		IntentFilter filter = new IntentFilter();
-		filter.addAction(CONNECTIVITY_ACTION);
-		filter.addAction(WIFI_AP_STATE_CHANGED_ACTION);
-		appContext.registerReceiver(networkStateReceiver, filter);
+		updateConnectionStatus();
 	}
 
 	@Override
 	public void stop() {
 		running = false;
-		if (networkStateReceiver != null)
-			appContext.unregisterReceiver(networkStateReceiver);
 		tryToClose(socket);
 	}
 
@@ -120,7 +103,7 @@ class AndroidLanTcpPlugin extends LanTcpPlugin {
 			return singletonList(intToInetAddress(info.getIpAddress()));
 		// If we're running an access point, return its address
 		if (super.getLocalIpAddresses().contains(WIFI_AP_ADDRESS))
-				return singletonList(WIFI_AP_ADDRESS);
+			return singletonList(WIFI_AP_ADDRESS);
 		// No suitable addresses
 		return emptyList();
 	}
@@ -152,21 +135,13 @@ class AndroidLanTcpPlugin extends LanTcpPlugin {
 		return SocketFactory.getDefault();
 	}
 
-	private class NetworkStateReceiver extends BroadcastReceiver {
+	@Override
+	public void eventOccurred(Event e) {
+		if (e instanceof NetworkStatusEvent) updateConnectionStatus();
+	}
 
-		@Override
-		public void onReceive(Context ctx, Intent i) {
-			if (!running) return;
-			if (isApEnabledEvent(i)) {
-				// The state change may be broadcast before the AP address is
-				// visible, so delay handling the event
-				scheduler.schedule(this::handleConnectivityChange, 1, SECONDS);
-			} else {
-				handleConnectivityChange();
-			}
-		}
-
-		private void handleConnectivityChange() {
+	private void updateConnectionStatus() {
+		connectionStatusExecutor.execute(() -> {
 			if (!running) return;
 			Collection<InetAddress> addrs = getLocalIpAddresses();
 			if (addrs.contains(WIFI_AP_ADDRESS)) {
@@ -186,11 +161,6 @@ class AndroidLanTcpPlugin extends LanTcpPlugin {
 				socketFactory = getSocketFactory();
 				if (socket == null || socket.isClosed()) bind();
 			}
-		}
-
-		private boolean isApEnabledEvent(Intent i) {
-			return WIFI_AP_STATE_CHANGED_ACTION.equals(i.getAction()) &&
-					i.getIntExtra(EXTRA_WIFI_STATE, 0) == WIFI_AP_STATE_ENABLED;
-		}
+		});
 	}
-}
+}

bramble-android/src/main/java/org/briarproject/bramble/plugin/tcp/AndroidLanTcpPluginFactory.java

@@ -2,6 +2,7 @@ package org.briarproject.bramble.plugin.tcp;
 
 import android.content.Context;
 
+import org.briarproject.bramble.api.event.EventBus;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.plugin.Backoff;
 import org.briarproject.bramble.api.plugin.BackoffFactory;
@@ -11,7 +12,6 @@ import org.briarproject.bramble.api.plugin.duplex.DuplexPluginCallback;
 import org.briarproject.bramble.api.plugin.duplex.DuplexPluginFactory;
 
 import java.util.concurrent.Executor;
-import java.util.concurrent.ScheduledExecutorService;
 
 import javax.annotation.concurrent.Immutable;
 
@@ -28,15 +28,14 @@ public class AndroidLanTcpPluginFactory implements DuplexPluginFactory {
 	private static final double BACKOFF_BASE = 1.2;
 
 	private final Executor ioExecutor;
-	private final ScheduledExecutorService scheduler;
+	private final EventBus eventBus;
 	private final BackoffFactory backoffFactory;
 	private final Context appContext;
 
-	public AndroidLanTcpPluginFactory(Executor ioExecutor,
-			ScheduledExecutorService scheduler, BackoffFactory backoffFactory,
-			Context appContext) {
+	public AndroidLanTcpPluginFactory(Executor ioExecutor, EventBus eventBus,
+			BackoffFactory backoffFactory, Context appContext) {
 		this.ioExecutor = ioExecutor;
-		this.scheduler = scheduler;
+		this.eventBus = eventBus;
 		this.backoffFactory = backoffFactory;
 		this.appContext = appContext;
 	}
@@ -55,7 +54,9 @@ public class AndroidLanTcpPluginFactory implements DuplexPluginFactory {
 	public DuplexPlugin createPlugin(DuplexPluginCallback callback) {
 		Backoff backoff = backoffFactory.createBackoff(MIN_POLLING_INTERVAL,
 				MAX_POLLING_INTERVAL, BACKOFF_BASE);
-		return new AndroidLanTcpPlugin(ioExecutor, scheduler, backoff,
-				appContext, callback, MAX_LATENCY, MAX_IDLE_TIME);
+		AndroidLanTcpPlugin plugin = new AndroidLanTcpPlugin(ioExecutor,
+				appContext, backoff, callback, MAX_LATENCY, MAX_IDLE_TIME);
+		eventBus.addListener(plugin);
+		return plugin;
 	}
 }

bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/CircumventionProvider.java

@@ -4,6 +4,8 @@ import org.briarproject.bramble.api.lifecycle.IoExecutor;
 
 import java.util.List;
 
+// TODO: Create a module for this so it doesn't have to be public
+
 public interface CircumventionProvider {
 
 	/**

bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/CircumventionProviderImpl.java

@@ -16,6 +16,8 @@ import java.util.Set;
 import javax.annotation.Nullable;
 import javax.inject.Inject;
 
+// TODO: Create a module for this so it doesn't need to be public
+
 public class CircumventionProviderImpl implements CircumventionProvider {
 
 	private final static String BRIDGE_FILE_NAME = "bridges";

bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/TorPlugin.java

@@ -1,15 +1,10 @@
 package org.briarproject.bramble.plugin.tor;
 
-import android.content.BroadcastReceiver;
 import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.res.Resources;
-import android.net.ConnectivityManager;
-import android.net.NetworkInfo;
 import android.os.PowerManager;
 
 import net.freehaven.tor.control.EventHandler;
@@ -21,6 +16,9 @@ import org.briarproject.bramble.api.data.BdfList;
 import org.briarproject.bramble.api.event.Event;
 import org.briarproject.bramble.api.event.EventListener;
 import org.briarproject.bramble.api.keyagreement.KeyAgreementListener;
+import org.briarproject.bramble.api.network.NetworkManager;
+import org.briarproject.bramble.api.network.NetworkStatus;
+import org.briarproject.bramble.api.network.event.NetworkStatusEvent;
 import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
 import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.bramble.api.plugin.Backoff;
@@ -59,10 +57,8 @@ import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Scanner;
 import java.util.concurrent.Executor;
-import java.util.concurrent.Future;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.atomic.AtomicReference;
 import java.util.logging.Logger;
 import java.util.regex.Pattern;
 import java.util.zip.ZipInputStream;
@@ -70,15 +66,8 @@ import java.util.zip.ZipInputStream;
 import javax.annotation.Nullable;
 import javax.net.SocketFactory;
 
-import static android.content.Context.CONNECTIVITY_SERVICE;
 import static android.content.Context.MODE_PRIVATE;
 import static android.content.Context.POWER_SERVICE;
-import static android.content.Intent.ACTION_SCREEN_OFF;
-import static android.content.Intent.ACTION_SCREEN_ON;
-import static android.net.ConnectivityManager.CONNECTIVITY_ACTION;
-import static android.net.ConnectivityManager.TYPE_WIFI;
-import static android.os.Build.VERSION.SDK_INT;
-import static android.os.PowerManager.ACTION_DEVICE_IDLE_MODE_CHANGED;
 import static android.os.PowerManager.PARTIAL_WAKE_LOCK;
 import static java.util.concurrent.TimeUnit.MINUTES;
 import static java.util.logging.Level.INFO;
@@ -87,6 +76,7 @@ import static net.freehaven.tor.control.TorControlCommands.HS_ADDRESS;
 import static net.freehaven.tor.control.TorControlCommands.HS_PRIVKEY;
 import static org.briarproject.bramble.api.plugin.TorConstants.CONTROL_PORT;
 import static org.briarproject.bramble.api.plugin.TorConstants.ID;
+import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_DISABLE_BLOCKED;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK_ALWAYS;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK_NEVER;
@@ -113,8 +103,8 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 			Logger.getLogger(TorPlugin.class.getName());
 
 	private final Executor ioExecutor, connectionStatusExecutor;
-	private final ScheduledExecutorService scheduler;
 	private final Context appContext;
+	private final NetworkManager networkManager;
 	private final LocationUtils locationUtils;
 	private final SocketFactory torSocketFactory;
 	private final Clock clock;
@@ -127,24 +117,22 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 	private final File torDirectory, torFile, geoIpFile, configFile;
 	private final File doneFile, cookieFile;
 	private final RenewableWakeLock wakeLock;
-	private final AtomicReference<Future<?>> connectivityCheck =
-			new AtomicReference<>();
 	private final AtomicBoolean used = new AtomicBoolean(false);
 
 	private volatile boolean running = false;
 	private volatile ServerSocket socket = null;
 	private volatile Socket controlSocket = null;
 	private volatile TorControlConnection controlConnection = null;
-	private volatile BroadcastReceiver networkStateReceiver = null;
 
 	TorPlugin(Executor ioExecutor, ScheduledExecutorService scheduler,
-			Context appContext, LocationUtils locationUtils,
-			SocketFactory torSocketFactory, Clock clock, Backoff backoff,
-			DuplexPluginCallback callback, String architecture,
-			CircumventionProvider circumventionProvider, int maxLatency, int maxIdleTime) {
+			Context appContext, NetworkManager networkManager,
+			LocationUtils locationUtils, SocketFactory torSocketFactory,
+			Clock clock, CircumventionProvider circumventionProvider,
+			Backoff backoff, DuplexPluginCallback callback,
+			String architecture, int maxLatency, int maxIdleTime) {
 		this.ioExecutor = ioExecutor;
-		this.scheduler = scheduler;
 		this.appContext = appContext;
+		this.networkManager = networkManager;
 		this.locationUtils = locationUtils;
 		this.torSocketFactory = torSocketFactory;
 		this.clock = clock;
@@ -165,8 +153,8 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		doneFile = new File(torDirectory, "done");
 		cookieFile = new File(torDirectory, ".tor/control_auth_cookie");
 		// Don't execute more than one connection status check at a time
-		connectionStatusExecutor = new PoliteExecutor("TorPlugin",
-				ioExecutor, 1);
+		connectionStatusExecutor =
+				new PoliteExecutor("TorPlugin", ioExecutor, 1);
 		PowerManager pm = (PowerManager)
 				appContext.getSystemService(POWER_SERVICE);
 		wakeLock = new RenewableWakeLock(pm, scheduler, PARTIAL_WAKE_LOCK,
@@ -271,14 +259,8 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		} catch (IOException e) {
 			throw new PluginException(e);
 		}
-		// Register to receive network status events
-		networkStateReceiver = new NetworkStateReceiver();
-		IntentFilter filter = new IntentFilter();
-		filter.addAction(CONNECTIVITY_ACTION);
-		filter.addAction(ACTION_SCREEN_ON);
-		filter.addAction(ACTION_SCREEN_OFF);
-		if (SDK_INT >= 23) filter.addAction(ACTION_DEVICE_IDLE_MODE_CHANGED);
-		appContext.registerReceiver(networkStateReceiver, filter);
+		// Check whether we're online
+		updateConnectionStatus(networkManager.getNetworkStatus());
 		// Bind a server socket to receive incoming hidden service connections
 		bind();
 	}
@@ -517,8 +499,6 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 	public void stop() {
 		running = false;
 		tryToClose(socket);
-		if (networkStateReceiver != null)
-			appContext.unregisterReceiver(networkStateReceiver);
 		if (controlSocket != null && controlConnection != null) {
 			try {
 				LOG.info("Stopping Tor");
@@ -580,7 +560,6 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		try {
 			if (LOG.isLoggable(INFO))
 				LOG.info("Connecting to " + scrubOnion(onion));
-			controlConnection.forgetHiddenService(onion);
 			s = torSocketFactory.createSocket(onion + ".onion", 80);
 			s.setSoTimeout(socketTimeout);
 			if (LOG.isLoggable(INFO))
@@ -629,8 +608,10 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 	@Override
 	public void orConnStatus(String status, String orName) {
 		if (LOG.isLoggable(INFO)) LOG.info("OR connection " + status);
-		if (status.equals("CLOSED") || status.equals("FAILED"))
-			updateConnectionStatus(); // Check whether we've lost connectivity
+		if (status.equals("CLOSED") || status.equals("FAILED")) {
+			// Check whether we've lost connectivity
+			updateConnectionStatus(networkManager.getNetworkStatus());
+		}
 	}
 
 	@Override
@@ -663,24 +644,25 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 			SettingsUpdatedEvent s = (SettingsUpdatedEvent) e;
 			if (s.getNamespace().equals(ID.getString())) {
 				LOG.info("Tor settings updated");
-				updateConnectionStatus();
+				updateConnectionStatus(networkManager.getNetworkStatus());
 			}
+		} else if (e instanceof NetworkStatusEvent) {
+			updateConnectionStatus(((NetworkStatusEvent) e).getStatus());
 		}
 	}
 
-	private void updateConnectionStatus() {
+	private void updateConnectionStatus(NetworkStatus status) {
 		connectionStatusExecutor.execute(() -> {
 			if (!running) return;
-			Object o = appContext.getSystemService(CONNECTIVITY_SERVICE);
-			ConnectivityManager cm = (ConnectivityManager) o;
-			NetworkInfo net = cm.getActiveNetworkInfo();
-			boolean online = net != null && net.isConnected();
-			boolean wifi = online && net.getType() == TYPE_WIFI;
+			boolean online = status.isConnected();
+			boolean wifi = status.isWifi();
 			String country = locationUtils.getCurrentCountry();
 			boolean blocked =
 					circumventionProvider.isTorProbablyBlocked(country);
 			Settings s = callback.getSettings();
 			int network = s.getInt(PREF_TOR_NETWORK, PREF_TOR_NETWORK_ALWAYS);
+			boolean disableWhenBlocked =
+					s.getBoolean(PREF_TOR_DISABLE_BLOCKED, true);
 
 			if (LOG.isLoggable(INFO)) {
 				LOG.info("Online: " + online + ", wifi: " + wifi);
@@ -701,9 +683,13 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 						LOG.info("Enabling network, using bridges");
 						enableBridges(true);
 						enableNetwork(true);
-					} else {
+					} else if (disableWhenBlocked) {
 						LOG.info("Disabling network, country is blocked");
 						enableNetwork(false);
+					} else {
+						LOG.info("Enabling network but country is blocked");
+						enableBridges(false);
+						enableNetwork(true);
 					}
 				} else {
 					LOG.info("Enabling network");
@@ -716,29 +702,6 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
 		});
 	}
 
-	private void scheduleConnectionStatusUpdate() {
-		Future<?> newConnectivityCheck =
-				scheduler.schedule(this::updateConnectionStatus, 1, MINUTES);
-		Future<?> oldConnectivityCheck =
-				connectivityCheck.getAndSet(newConnectivityCheck);
-		if (oldConnectivityCheck != null) oldConnectivityCheck.cancel(false);
-	}
-
-	private class NetworkStateReceiver extends BroadcastReceiver {
-
-		@Override
-		public void onReceive(Context ctx, Intent i) {
-			if (!running) return;
-			String action = i.getAction();
-			if (LOG.isLoggable(INFO)) LOG.info("Received broadcast " + action);
-			updateConnectionStatus();
-			if (ACTION_SCREEN_ON.equals(action)
-					|| ACTION_SCREEN_OFF.equals(action)) {
-				scheduleConnectionStatusUpdate();
-			}
-		}
-	}
-
 	private static class ConnectionStatus {
 
 		// All of the following are locking: this

bramble-android/src/main/java/org/briarproject/bramble/plugin/tor/TorPluginFactory.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import android.os.Build;
 
 import org.briarproject.bramble.api.event.EventBus;
+import org.briarproject.bramble.api.network.NetworkManager;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.plugin.Backoff;
 import org.briarproject.bramble.api.plugin.BackoffFactory;
@@ -39,6 +40,7 @@ public class TorPluginFactory implements DuplexPluginFactory {
 	private final Executor ioExecutor;
 	private final ScheduledExecutorService scheduler;
 	private final Context appContext;
+	private final NetworkManager networkManager;
 	private final LocationUtils locationUtils;
 	private final EventBus eventBus;
 	private final SocketFactory torSocketFactory;
@@ -48,13 +50,14 @@ public class TorPluginFactory implements DuplexPluginFactory {
 
 	public TorPluginFactory(Executor ioExecutor,
 			ScheduledExecutorService scheduler, Context appContext,
-			LocationUtils locationUtils, EventBus eventBus,
-			SocketFactory torSocketFactory, BackoffFactory backoffFactory,
-			CircumventionProvider circumventionProvider,
-			Clock clock) {
+			NetworkManager networkManager, LocationUtils locationUtils,
+			EventBus eventBus, SocketFactory torSocketFactory,
+			BackoffFactory backoffFactory,
+			CircumventionProvider circumventionProvider, Clock clock) {
 		this.ioExecutor = ioExecutor;
 		this.scheduler = scheduler;
 		this.appContext = appContext;
+		this.networkManager = networkManager;
 		this.locationUtils = locationUtils;
 		this.eventBus = eventBus;
 		this.torSocketFactory = torSocketFactory;
@@ -97,8 +100,9 @@ public class TorPluginFactory implements DuplexPluginFactory {
 		Backoff backoff = backoffFactory.createBackoff(MIN_POLLING_INTERVAL,
 				MAX_POLLING_INTERVAL, BACKOFF_BASE);
 		TorPlugin plugin = new TorPlugin(ioExecutor, scheduler, appContext,
-				locationUtils, torSocketFactory, clock, backoff, callback,
-				architecture, circumventionProvider, MAX_LATENCY, MAX_IDLE_TIME);
+				networkManager, locationUtils, torSocketFactory, clock,
+				circumventionProvider, backoff, callback, architecture,
+				MAX_LATENCY, MAX_IDLE_TIME);
 		eventBus.addListener(plugin);
 		return plugin;
 	}

bramble-android/src/main/java/org/briarproject/bramble/util/AndroidUtils.java

@@ -3,7 +3,6 @@ package org.briarproject.bramble.util;
 import android.annotation.SuppressLint;
 import android.bluetooth.BluetoothAdapter;
 import android.content.Context;
-import android.content.SharedPreferences;
 import android.os.Build;
 import android.provider.Settings;
 
@@ -58,30 +57,6 @@ public class AndroidUtils {
 				&& !address.equals(FAKE_BLUETOOTH_ADDRESS);
 	}
 
-	public static void deleteAppData(Context ctx, SharedPreferences... clear) {
-		// Clear and commit shared preferences
-		for (SharedPreferences prefs : clear) {
-			if (!prefs.edit().clear().commit())
-				LOG.warning("Could not clear shared preferences");
-		}
-		// Delete files, except lib and shared_prefs directories
-		File dataDir = new File(ctx.getApplicationInfo().dataDir);
-		File[] children = dataDir.listFiles();
-		if (children == null) {
-			LOG.warning("Could not list files in app data dir");
-		} else {
-			for (File child : children) {
-				String name = child.getName();
-				if (!name.equals("lib") && !name.equals("shared_prefs")) {
-					IoUtils.deleteFileOrDir(child);
-				}
-			}
-		}
-		// Recreate the cache dir as some OpenGL drivers expect it to exist
-		if (!new File(dataDir, "cache").mkdir())
-			LOG.warning("Could not recreate cache dir");
-	}
-
 	public static File getReportDir(Context ctx) {
 		return ctx.getDir(STORED_REPORTS, MODE_PRIVATE);
 	}

bramble-android/src/test/java/org/briarproject/bramble/account/AndroidAccountManagerTest.java

@@ -0,0 +1,162 @@
+package org.briarproject.bramble.account;
+
+import android.app.Application;
+import android.content.SharedPreferences;
+import android.content.pm.ApplicationInfo;
+
+import org.briarproject.bramble.api.crypto.CryptoComponent;
+import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.identity.IdentityManager;
+import org.briarproject.bramble.test.BrambleMockTestCase;
+import org.jmock.Expectations;
+import org.jmock.lib.legacy.ClassImposteriser;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.File;
+
+import static junit.framework.Assert.assertEquals;
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertTrue;
+import static org.briarproject.bramble.test.TestUtils.deleteTestDirectory;
+import static org.briarproject.bramble.test.TestUtils.getRandomBytes;
+import static org.briarproject.bramble.test.TestUtils.getTestDirectory;
+import static org.briarproject.bramble.util.StringUtils.toHexString;
+
+public class AndroidAccountManagerTest extends BrambleMockTestCase {
+
+	private final SharedPreferences prefs =
+			context.mock(SharedPreferences.class, "prefs");
+	private final SharedPreferences defaultPrefs =
+			context.mock(SharedPreferences.class, "defaultPrefs");
+	private final DatabaseConfig databaseConfig =
+			context.mock(DatabaseConfig.class);
+	private final CryptoComponent crypto = context.mock(CryptoComponent.class);
+	private final IdentityManager identityManager =
+			context.mock(IdentityManager.class);
+	private final SharedPreferences.Editor
+			editor = context.mock(SharedPreferences.Editor.class);
+	private final Application app;
+	private final ApplicationInfo applicationInfo;
+
+	private final String encryptedKeyHex = toHexString(getRandomBytes(123));
+	private final File testDir = getTestDirectory();
+	private final File keyDir = new File(testDir, "key");
+	private final File keyFile = new File(keyDir, "db.key");
+	private final File keyBackupFile = new File(keyDir, "db.key.bak");
+	private final File dbDir = new File(testDir, "db");
+
+	private AndroidAccountManager accountManager;
+
+	public AndroidAccountManagerTest() {
+		context.setImposteriser(ClassImposteriser.INSTANCE);
+		app = context.mock(Application.class);
+		applicationInfo = new ApplicationInfo();
+		applicationInfo.dataDir = testDir.getAbsolutePath();
+	}
+
+	@Before
+	public void setUp() {
+		context.checking(new Expectations() {{
+			allowing(databaseConfig).getDatabaseDirectory();
+			will(returnValue(dbDir));
+			allowing(databaseConfig).getDatabaseKeyDirectory();
+			will(returnValue(keyDir));
+			allowing(app).getApplicationContext();
+			will(returnValue(app));
+		}});
+		accountManager = new AndroidAccountManager(databaseConfig, crypto,
+				identityManager, prefs, app) {
+			@Override
+			SharedPreferences getDefaultSharedPreferences() {
+				return defaultPrefs;
+			}
+		};
+	}
+
+	@Test
+	public void testDbKeyIsMigratedFromPreferencesToFile() {
+		context.checking(new Expectations() {{
+			oneOf(prefs).getString("key", null);
+			will(returnValue(encryptedKeyHex));
+			oneOf(prefs).edit();
+			will(returnValue(editor));
+			oneOf(editor).remove("key");
+			will(returnValue(editor));
+			oneOf(editor).commit();
+			will(returnValue(true));
+		}});
+
+		assertFalse(keyFile.exists());
+		assertFalse(keyBackupFile.exists());
+
+		assertEquals(encryptedKeyHex,
+				accountManager.loadEncryptedDatabaseKey());
+
+		assertTrue(keyFile.exists());
+		assertTrue(keyBackupFile.exists());
+	}
+
+	@Test
+	public void testDeleteAccountClearsSharedPrefsAndDeletesFiles()
+			throws Exception {
+		// Directories 'lib' and 'shared_prefs' should be spared
+		File libDir = new File(testDir, "lib");
+		File libFile = new File(libDir, "file");
+		File sharedPrefsDir = new File(testDir, "shared_prefs");
+		File sharedPrefsFile = new File(sharedPrefsDir, "file");
+		// Directory 'cache' should be emptied
+		File cacheDir = new File(testDir, "cache");
+		File cacheFile = new File(cacheDir, "file");
+		// Other directories should be deleted
+		File potatoDir = new File(testDir, ".potato");
+		File potatoFile = new File(potatoDir, "file");
+
+		context.checking(new Expectations() {{
+			oneOf(prefs).edit();
+			will(returnValue(editor));
+			oneOf(editor).clear();
+			will(returnValue(editor));
+			oneOf(editor).commit();
+			will(returnValue(true));
+			oneOf(defaultPrefs).edit();
+			will(returnValue(editor));
+			oneOf(editor).clear();
+			will(returnValue(editor));
+			oneOf(editor).commit();
+			will(returnValue(true));
+			oneOf(app).getApplicationInfo();
+			will(returnValue(applicationInfo));
+		}});
+
+		assertTrue(dbDir.mkdirs());
+		assertTrue(keyDir.mkdirs());
+		assertTrue(libDir.mkdirs());
+		assertTrue(libFile.createNewFile());
+		assertTrue(sharedPrefsDir.mkdirs());
+		assertTrue(sharedPrefsFile.createNewFile());
+		assertTrue(cacheDir.mkdirs());
+		assertTrue(cacheFile.createNewFile());
+		assertTrue(potatoDir.mkdirs());
+		assertTrue(potatoFile.createNewFile());
+
+		accountManager.deleteAccount();
+
+		assertFalse(dbDir.exists());
+		assertFalse(keyDir.exists());
+		assertTrue(libDir.exists());
+		assertTrue(libFile.exists());
+		assertTrue(sharedPrefsDir.exists());
+		assertTrue(sharedPrefsFile.exists());
+		assertTrue(cacheDir.exists());
+		assertFalse(cacheFile.exists());
+		assertFalse(potatoDir.exists());
+		assertFalse(potatoFile.exists());
+	}
+
+	@After
+	public void tearDown() {
+		deleteTestDirectory(testDir);
+	}
+}

bramble-api/src/main/java/org/briarproject/bramble/api/account/AccountManager.java

@@ -0,0 +1,70 @@
+package org.briarproject.bramble.api.account;
+
+import org.briarproject.bramble.api.crypto.SecretKey;
+import org.briarproject.bramble.api.identity.IdentityManager;
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+
+import javax.annotation.Nullable;
+
+@NotNullByDefault
+public interface AccountManager {
+
+	/**
+	 * Returns true if the manager has the database key. This will be false
+	 * before {@link #createAccount(String, String)} or {@link #signIn(String)}
+	 * has been called, and true after {@link #createAccount(String, String)}
+	 * or {@link #signIn(String)} has returned true, until the process exits.
+	 */
+	boolean hasDatabaseKey();
+
+	/**
+	 * Returns the database key if the manager has it. This will be null
+	 * before {@link #createAccount(String, String)} or {@link #signIn(String)}
+	 * has been called, and non-null after
+	 * {@link #createAccount(String, String)} or {@link #signIn(String)} has
+	 * returned true, until the process exits.
+	 */
+	@Nullable
+	SecretKey getDatabaseKey();
+
+	/**
+	 * Returns true if the encrypted database key can be loaded from disk, and
+	 * the database directory exists and is a directory.
+	 */
+	boolean accountExists();
+
+	/**
+	 * Creates an identity with the given name and registers it with the
+	 * {@link IdentityManager}. Creates a database key, encrypts it with the
+	 * given password and stores it on disk.
+	 * <p/>
+	 * This method does not create the database directory, so
+	 * {@link #accountExists()} will continue to return false until the
+	 * database directory is created.
+	 */
+	boolean createAccount(String name, String password);
+
+	/**
+	 * Deletes all account state from disk. {@link #accountExists()} will
+	 * return false after this method returns.
+	 */
+	void deleteAccount();
+
+	/**
+	 * Loads the encrypted database key from disk and decrypts it with the
+	 * given password.
+	 *
+	 * @return true if the database key was successfully loaded and decrypted.
+	 */
+	boolean signIn(String password);
+
+	/**
+	 * Loads the encrypted database key from disk, decrypts it with the old
+	 * password, encrypts it with the new password, and stores it on disk,
+	 * replacing the old key.
+	 *
+	 * @return true if the database key was successfully loaded, re-encrypted
+	 * and stored.
+	 */
+	boolean changePassword(String oldPassword, String newPassword);
+}

bramble-api/src/main/java/org/briarproject/bramble/api/contact/ContactManager.java

@@ -16,7 +16,7 @@ public interface ContactManager {
 	/**
 	 * Registers a hook to be called whenever a contact is added or removed.
 	 * This method should be called before
-	 * {@link LifecycleManager#startServices(String)}.
+	 * {@link LifecycleManager#startServices(SecretKey)}.
 	 */
 	void registerContactHook(ContactHook hook);
 

bramble-api/src/main/java/org/briarproject/bramble/api/db/DatabaseComponent.java

@@ -2,6 +2,7 @@ package org.briarproject.bramble.api.db;
 
 import org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.identity.Author;
 import org.briarproject.bramble.api.identity.AuthorId;
 import org.briarproject.bramble.api.identity.LocalAuthor;
@@ -44,7 +45,8 @@ public interface DatabaseComponent {
 	 * @throws DataTooOldException if the data uses an older schema than the
 	 * current code and cannot be migrated
 	 */
-	boolean open(@Nullable MigrationListener listener) throws DbException;
+	boolean open(SecretKey key, @Nullable MigrationListener listener)
+			throws DbException;
 
 	/**
 	 * Waits for any open transactions to finish and closes the database.
@@ -267,7 +269,7 @@ public interface DatabaseComponent {
 	 * Read-only.
 	 */
 	Collection<MessageId> getMessageIds(Transaction txn, GroupId g)
-		throws DbException;
+			throws DbException;
 
 	/**
 	 * Returns the IDs of any messages that need to be validated.
@@ -487,7 +489,7 @@ public interface DatabaseComponent {
 	 * Removes the given transport keys from the database.
 	 */
 	void removeTransportKeys(Transaction txn, TransportId t, KeySetId k)
-		throws DbException;
+			throws DbException;
 
 	/**
 	 * Marks the given contact as verified.
@@ -534,7 +536,7 @@ public interface DatabaseComponent {
 	 * Marks the given transport keys as usable for outgoing streams.
 	 */
 	void setTransportKeysActive(Transaction txn, TransportId t, KeySetId k)
-		throws DbException;
+			throws DbException;
 
 	/**
 	 * Stores the given transport keys, deleting any keys they have replaced.

bramble-api/src/main/java/org/briarproject/bramble/api/db/DatabaseConfig.java

@@ -1,30 +1,15 @@
 package org.briarproject.bramble.api.db;
 
-import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 import java.io.File;
 
-import javax.annotation.Nullable;
-
 @NotNullByDefault
 public interface DatabaseConfig {
 
-	boolean databaseExists();
-
 	File getDatabaseDirectory();
 
 	File getDatabaseKeyDirectory();
 
-	void setEncryptionKey(SecretKey key);
-
-	@Nullable
-	SecretKey getEncryptionKey();
-
-	void setLocalAuthorName(String nickname);
-
-	@Nullable
-	String getLocalAuthorName();
-
 	long getMaxSize();
 }

bramble-api/src/main/java/org/briarproject/bramble/api/identity/IdentityManager.java

@@ -1,5 +1,6 @@
 package org.briarproject.bramble.api.identity;
 
+import org.briarproject.bramble.api.crypto.CryptoExecutor;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.identity.Author.Status;
@@ -9,29 +10,40 @@ import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 public interface IdentityManager {
 
 	/**
-	 * Stores the local pseudonym.
+	 * Creates a local identity with the given name.
 	 */
-	void registerLocalAuthor(LocalAuthor a) throws DbException;
+	@CryptoExecutor
+	LocalAuthor createLocalAuthor(String name);
 
 	/**
-	 * Returns the cached main local identity, non-blocking, or loads it from
-	 * the db, blocking
+	 * Registers the given local identity with the manager. The identity is
+	 * not stored until {@link #storeLocalAuthor()} is called.
+	 */
+	void registerLocalAuthor(LocalAuthor a);
+
+	/**
+	 * Stores the local identity registered with
+	 * {@link #registerLocalAuthor(LocalAuthor)}, if any.
+	 */
+	void storeLocalAuthor() throws DbException;
+
+	/**
+	 * Returns the cached local identity or loads it from the database.
 	 */
 	LocalAuthor getLocalAuthor() throws DbException;
 
 	/**
-	 * Returns the cached main local identity, non-blocking, or loads it from
-	 * the db, blocking, within the given Transaction.
+	 * Returns the cached local identity or loads it from the database.
 	 */
 	LocalAuthor getLocalAuthor(Transaction txn) throws DbException;
 
 	/**
-	 * Returns the trust-level status of the author
+	 * Returns the {@link Status} of the given author.
 	 */
 	Status getAuthorStatus(AuthorId a) throws DbException;
 
 	/**
-	 * Returns the trust-level status of the author
+	 * Returns the {@link Status} of the given author.
 	 */
 	Status getAuthorStatus(Transaction txn, AuthorId a) throws DbException;
 

bramble-api/src/main/java/org/briarproject/bramble/api/lifecycle/LifecycleManager.java

@@ -1,13 +1,12 @@
 package org.briarproject.bramble.api.lifecycle;
 
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.DatabaseComponent;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.sync.Client;
 
 import java.util.concurrent.ExecutorService;
 
-import javax.annotation.Nullable;
-
 /**
  * Manages the lifecycle of the app, starting {@link Client Clients}, starting
  * and stopping {@link Service Services}, shutting down
@@ -18,7 +17,7 @@ import javax.annotation.Nullable;
 public interface LifecycleManager {
 
 	/**
-	 * The result of calling {@link #startServices(String)}.
+	 * The result of calling {@link #startServices(SecretKey)}.
 	 */
 	enum StartResult {
 		ALREADY_RUNNING,
@@ -44,28 +43,27 @@ public interface LifecycleManager {
 
 	/**
 	 * Registers a {@link Service} to be started and stopped. This method
-	 * should be called before {@link #startServices(String)}.
+	 * should be called before {@link #startServices(SecretKey)}.
 	 */
 	void registerService(Service s);
 
 	/**
 	 * Registers a {@link Client} to be started. This method should be called
-	 * before {@link #startServices(String)}.
+	 * before {@link #startServices(SecretKey)}.
 	 */
 	void registerClient(Client c);
 
 	/**
 	 * Registers an {@link ExecutorService} to be shut down. This method
-	 * should be called before {@link #startServices(String)}.
+	 * should be called before {@link #startServices(SecretKey)}.
 	 */
 	void registerForShutdown(ExecutorService e);
 
 	/**
-	 * Opens the {@link DatabaseComponent}, optionally creates a local author
-	 * with the provided nickname, and starts any registered
-	 * {@link Client Clients} and {@link Service Services}.
+	 * Opens the {@link DatabaseComponent} using the given key and starts any
+	 * registered {@link Client Clients} and {@link Service Services}.
 	 */
-	StartResult startServices(@Nullable String nickname);
+	StartResult startServices(SecretKey dbKey);
 
 	/**
 	 * Stops any registered {@link Service Services}, shuts down any

bramble-api/src/main/java/org/briarproject/bramble/api/network/NetworkManager.java

@@ -0,0 +1,9 @@
+package org.briarproject.bramble.api.network;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+
+@NotNullByDefault
+public interface NetworkManager {
+
+	NetworkStatus getNetworkStatus();
+}

bramble-api/src/main/java/org/briarproject/bramble/api/network/NetworkStatus.java

@@ -0,0 +1,25 @@
+package org.briarproject.bramble.api.network;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+
+import javax.annotation.concurrent.Immutable;
+
+@Immutable
+@NotNullByDefault
+public class NetworkStatus {
+
+	private final boolean connected, wifi;
+
+	public NetworkStatus(boolean connected, boolean wifi) {
+		this.connected = connected;
+		this.wifi = wifi;
+	}
+
+	public boolean isConnected() {
+		return connected;
+	}
+
+	public boolean isWifi() {
+		return wifi;
+	}
+}

bramble-api/src/main/java/org/briarproject/bramble/api/network/event/NetworkStatusEvent.java

@@ -0,0 +1,22 @@
+package org.briarproject.bramble.api.network.event;
+
+import org.briarproject.bramble.api.event.Event;
+import org.briarproject.bramble.api.network.NetworkStatus;
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+
+import javax.annotation.concurrent.Immutable;
+
+@Immutable
+@NotNullByDefault
+public class NetworkStatusEvent extends Event {
+
+	private final NetworkStatus status;
+
+	public NetworkStatusEvent(NetworkStatus status) {
+		this.status = status;
+	}
+
+	public NetworkStatus getStatus() {
+		return status;
+	}
+}

bramble-api/src/main/java/org/briarproject/bramble/api/plugin/TorConstants.java

@@ -14,6 +14,7 @@ public interface TorConstants {
 
 	String PREF_TOR_NETWORK = "network";
 	String PREF_TOR_PORT = "port";
+	String PREF_TOR_DISABLE_BLOCKED = "disableWhenBlocked";
 
 	int PREF_TOR_NETWORK_NEVER = 0;
 	int PREF_TOR_NETWORK_WIFI = 1;

bramble-api/src/main/java/org/briarproject/bramble/api/sync/ValidationManager.java

@@ -1,5 +1,6 @@
 package org.briarproject.bramble.api.sync;
 
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.Metadata;
 import org.briarproject.bramble.api.db.Transaction;
@@ -35,7 +36,8 @@ public interface ValidationManager {
 
 	/**
 	 * Registers the message validator for the given client. This method
-	 * should be called before {@link LifecycleManager#startServices(String)}.
+	 * should be called before
+	 * {@link LifecycleManager#startServices(SecretKey)}.
 	 */
 	void registerMessageValidator(ClientId c, int majorVersion,
 			MessageValidator v);
@@ -44,7 +46,7 @@ public interface ValidationManager {
 	 * Registers the incoming message hook for the given client. The hook will
 	 * be called once for each incoming message that passes validation. This
 	 * method should be called before
-	 * {@link LifecycleManager#startServices(String)}.
+	 * {@link LifecycleManager#startServices(SecretKey)}.
 	 */
 	void registerIncomingMessageHook(ClientId c, int majorVersion,
 			IncomingMessageHook hook);

bramble-api/src/main/java/org/briarproject/bramble/api/versioning/ClientVersioningManager.java

@@ -2,6 +2,7 @@ package org.briarproject.bramble.api.versioning;
 
 import org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager;
@@ -25,7 +26,7 @@ public interface ClientVersioningManager {
 	/**
 	 * Registers a client that will be advertised to contacts. The hook will
 	 * be called when the visibility of the client changes. This method should
-	 * be called before {@link LifecycleManager#startServices(String)}.
+	 * be called before {@link LifecycleManager#startServices(SecretKey)}.
 	 */
 	void registerClient(ClientId clientId, int majorVersion, int minorVersion,
 			ClientVersioningHook hook);

bramble-core/src/main/java/org/briarproject/bramble/account/AccountManagerImpl.java

@@ -0,0 +1,221 @@
+package org.briarproject.bramble.account;
+
+import org.briarproject.bramble.api.account.AccountManager;
+import org.briarproject.bramble.api.crypto.CryptoComponent;
+import org.briarproject.bramble.api.crypto.SecretKey;
+import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.identity.IdentityManager;
+import org.briarproject.bramble.api.identity.LocalAuthor;
+import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
+import org.briarproject.bramble.util.IoUtils;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.logging.Logger;
+
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+
+import static java.util.logging.Level.WARNING;
+import static org.briarproject.bramble.util.LogUtils.logException;
+import static org.briarproject.bramble.util.StringUtils.fromHexString;
+import static org.briarproject.bramble.util.StringUtils.toHexString;
+
+@MethodsNotNullByDefault
+@ParametersNotNullByDefault
+class AccountManagerImpl implements AccountManager {
+
+	private static final Logger LOG =
+			Logger.getLogger(AccountManagerImpl.class.getName());
+
+	private static final String DB_KEY_FILENAME = "db.key";
+	private static final String DB_KEY_BACKUP_FILENAME = "db.key.bak";
+
+	private final DatabaseConfig databaseConfig;
+	private final CryptoComponent crypto;
+	private final IdentityManager identityManager;
+	private final File dbKeyFile, dbKeyBackupFile;
+
+	final Object stateChangeLock = new Object();
+
+	@Nullable
+	private volatile SecretKey databaseKey = null;
+
+	@Inject
+	AccountManagerImpl(DatabaseConfig databaseConfig, CryptoComponent crypto,
+			IdentityManager identityManager) {
+		this.databaseConfig = databaseConfig;
+		this.crypto = crypto;
+		this.identityManager = identityManager;
+		File keyDir = databaseConfig.getDatabaseKeyDirectory();
+		dbKeyFile = new File(keyDir, DB_KEY_FILENAME);
+		dbKeyBackupFile = new File(keyDir, DB_KEY_BACKUP_FILENAME);
+	}
+
+	@Override
+	public boolean hasDatabaseKey() {
+		return databaseKey != null;
+	}
+
+	@Override
+	@Nullable
+	public SecretKey getDatabaseKey() {
+		return databaseKey;
+	}
+
+	// Locking: stateChangeLock
+	@Nullable
+	protected String loadEncryptedDatabaseKey() {
+		String key = readDbKeyFromFile(dbKeyFile);
+		if (key == null) {
+			LOG.info("No database key in primary file");
+			key = readDbKeyFromFile(dbKeyBackupFile);
+			if (key == null) LOG.info("No database key in backup file");
+			else LOG.warning("Found database key in backup file");
+		} else {
+			LOG.info("Found database key in primary file");
+		}
+		return key;
+	}
+
+	// Locking: stateChangeLock
+	@Nullable
+	private String readDbKeyFromFile(File f) {
+		if (!f.exists()) {
+			LOG.info("Key file does not exist");
+			return null;
+		}
+		try {
+			BufferedReader reader = new BufferedReader(new InputStreamReader(
+					new FileInputStream(f), "UTF-8"));
+			String key = reader.readLine();
+			reader.close();
+			return key;
+		} catch (IOException e) {
+			logException(LOG, WARNING, e);
+			return null;
+		}
+	}
+
+	// Locking: stateChangeLock
+	protected boolean storeEncryptedDatabaseKey(String hex) {
+		LOG.info("Storing database key in file");
+		// Create the directory if necessary
+		if (databaseConfig.getDatabaseKeyDirectory().mkdirs())
+			LOG.info("Created database key directory");
+		// If only the backup file exists, rename it so we don't overwrite it
+		if (dbKeyBackupFile.exists() && !dbKeyFile.exists()) {
+			if (dbKeyBackupFile.renameTo(dbKeyFile))
+				LOG.info("Renamed old backup");
+			else LOG.warning("Failed to rename old backup");
+		}
+		try {
+			// Write to the backup file
+			writeDbKeyToFile(hex, dbKeyBackupFile);
+			LOG.info("Stored database key in backup file");
+			// Delete the old primary file, if it exists
+			if (dbKeyFile.exists()) {
+				if (dbKeyFile.delete()) LOG.info("Deleted primary file");
+				else LOG.warning("Failed to delete primary file");
+			}
+			// The backup file becomes the new primary
+			if (dbKeyBackupFile.renameTo(dbKeyFile)) {
+				LOG.info("Renamed backup file to primary");
+			} else {
+				LOG.warning("Failed to rename backup file to primary");
+				return false; // Don't overwrite our only copy
+			}
+			// Write a second copy to the backup file
+			writeDbKeyToFile(hex, dbKeyBackupFile);
+			LOG.info("Stored second copy of database key in backup file");
+			return true;
+		} catch (IOException e) {
+			logException(LOG, WARNING, e);
+			return false;
+		}
+	}
+
+	// Locking: stateChangeLock
+	private void writeDbKeyToFile(String key, File f) throws IOException {
+		FileOutputStream out = new FileOutputStream(f);
+		out.write(key.getBytes("UTF-8"));
+		out.flush();
+		out.close();
+	}
+
+	@Override
+	public boolean accountExists() {
+		synchronized (stateChangeLock) {
+			return loadEncryptedDatabaseKey() != null
+					&& databaseConfig.getDatabaseDirectory().isDirectory();
+		}
+	}
+
+	@Override
+	public boolean createAccount(String name, String password) {
+		synchronized (stateChangeLock) {
+			LocalAuthor localAuthor = identityManager.createLocalAuthor(name);
+			identityManager.registerLocalAuthor(localAuthor);
+			SecretKey key = crypto.generateSecretKey();
+			if (!encryptAndStoreDatabaseKey(key, password)) return false;
+			databaseKey = key;
+			return true;
+		}
+	}
+
+	// Locking: stateChangeLock
+	private boolean encryptAndStoreDatabaseKey(SecretKey key, String password) {
+		byte[] plaintext = key.getBytes();
+		byte[] ciphertext = crypto.encryptWithPassword(plaintext, password);
+		return storeEncryptedDatabaseKey(toHexString(ciphertext));
+	}
+
+	@Override
+	public void deleteAccount() {
+		synchronized (stateChangeLock) {
+			LOG.info("Deleting account");
+			IoUtils.deleteFileOrDir(databaseConfig.getDatabaseKeyDirectory());
+			IoUtils.deleteFileOrDir(databaseConfig.getDatabaseDirectory());
+		}
+	}
+
+	@Override
+	public boolean signIn(String password) {
+		synchronized (stateChangeLock) {
+			SecretKey key = loadAndDecryptDatabaseKey(password);
+			if (key == null) return false;
+			databaseKey = key;
+			return true;
+		}
+	}
+
+	// Locking: stateChangeLock
+	@Nullable
+	private SecretKey loadAndDecryptDatabaseKey(String password) {
+		String hex = loadEncryptedDatabaseKey();
+		if (hex == null) {
+			LOG.warning("Failed to load encrypted database key");
+			return null;
+		}
+		byte[] ciphertext = fromHexString(hex);
+		byte[] plaintext = crypto.decryptWithPassword(ciphertext, password);
+		if (plaintext == null) {
+			LOG.info("Failed to decrypt database key");
+			return null;
+		}
+		return new SecretKey(plaintext);
+	}
+
+	@Override
+	public boolean changePassword(String oldPassword, String newPassword) {
+		synchronized (stateChangeLock) {
+			SecretKey key = loadAndDecryptDatabaseKey(oldPassword);
+			return key != null && encryptAndStoreDatabaseKey(key, newPassword);
+		}
+	}
+}

bramble-core/src/main/java/org/briarproject/bramble/account/AccountModule.java

@@ -0,0 +1,18 @@
+package org.briarproject.bramble.account;
+
+import org.briarproject.bramble.api.account.AccountManager;
+
+import javax.inject.Singleton;
+
+import dagger.Module;
+import dagger.Provides;
+
+@Module
+public class AccountModule {
+
+	@Provides
+	@Singleton
+	AccountManager provideAccountManager(AccountManagerImpl accountManager) {
+		return accountManager;
+	}
+}

bramble-core/src/main/java/org/briarproject/bramble/db/Database.java

@@ -2,6 +2,7 @@ package org.briarproject.bramble.db;
 
 import org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.DataTooNewException;
 import org.briarproject.bramble.api.db.DataTooOldException;
 import org.briarproject.bramble.api.db.DbException;
@@ -48,7 +49,8 @@ interface Database<T> {
 	 * @throws DataTooOldException if the data uses an older schema than the
 	 * current code and cannot be migrated
 	 */
-	boolean open(@Nullable MigrationListener listener) throws DbException;
+	boolean open(SecretKey key, @Nullable MigrationListener listener)
+			throws DbException;
 
 	/**
 	 * Prevents new transactions from starting, waits for all current
@@ -641,7 +643,7 @@ interface Database<T> {
 	 * Marks the given transport keys as usable for outgoing streams.
 	 */
 	void setTransportKeysActive(T txn, TransportId t, KeySetId k)
-		throws DbException;
+			throws DbException;
 
 	/**
 	 * Updates the transmission count and expiry time of the given message

bramble-core/src/main/java/org/briarproject/bramble/db/DatabaseComponentImpl.java

@@ -6,6 +6,7 @@ import org.briarproject.bramble.api.contact.event.ContactAddedEvent;
 import org.briarproject.bramble.api.contact.event.ContactRemovedEvent;
 import org.briarproject.bramble.api.contact.event.ContactStatusChangedEvent;
 import org.briarproject.bramble.api.contact.event.ContactVerifiedEvent;
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.ContactExistsException;
 import org.briarproject.bramble.api.db.DatabaseComponent;
 import org.briarproject.bramble.api.db.DbException;
@@ -103,9 +104,9 @@ class DatabaseComponentImpl<T> implements DatabaseComponent {
 	}
 
 	@Override
-	public boolean open(@Nullable MigrationListener listener)
+	public boolean open(SecretKey key, @Nullable MigrationListener listener)
 			throws DbException {
-		boolean reopened = db.open(listener);
+		boolean reopened = db.open(key, listener);
 		shutdown.addShutdownHook(() -> {
 			try {
 				close();

bramble-core/src/main/java/org/briarproject/bramble/db/H2Database.java

@@ -32,6 +32,9 @@ class H2Database extends JdbcDatabase {
 	private final DatabaseConfig config;
 	private final String url;
 
+	@Nullable
+	private volatile SecretKey key = null;
+
 	@Inject
 	H2Database(DatabaseConfig config, Clock clock) {
 		super(HASH_TYPE, SECRET_TYPE, BINARY_TYPE, COUNTER_TYPE, STRING_TYPE,
@@ -44,11 +47,11 @@ class H2Database extends JdbcDatabase {
 	}
 
 	@Override
-	public boolean open(@Nullable MigrationListener listener)
+	public boolean open(SecretKey key, @Nullable MigrationListener listener)
 			throws DbException {
-		boolean reopen = config.databaseExists();
-		if (!reopen) config.getDatabaseDirectory().mkdirs();
-		super.open("org.h2.Driver", reopen, listener);
+		this.key = key;
+		boolean reopen = !config.getDatabaseDirectory().mkdirs();
+		super.open("org.h2.Driver", reopen, key, listener);
 		return reopen;
 	}
 
@@ -63,7 +66,7 @@ class H2Database extends JdbcDatabase {
 	}
 
 	@Override
-	public long getFreeSpace() throws DbException {
+	public long getFreeSpace() {
 		File dir = config.getDatabaseDirectory();
 		long maxSize = config.getMaxSize();
 		long free = dir.getFreeSpace();
@@ -88,7 +91,7 @@ class H2Database extends JdbcDatabase {
 
 	@Override
 	protected Connection createConnection() throws SQLException {
-		SecretKey key = config.getEncryptionKey();
+		SecretKey key = this.key;
 		if (key == null) throw new IllegalStateException();
 		Properties props = new Properties();
 		props.setProperty("user", "user");

bramble-core/src/main/java/org/briarproject/bramble/db/HyperSqlDatabase.java

@@ -33,6 +33,9 @@ class HyperSqlDatabase extends JdbcDatabase {
 	private final DatabaseConfig config;
 	private final String url;
 
+	@Nullable
+	private volatile SecretKey key = null;
+
 	@Inject
 	HyperSqlDatabase(DatabaseConfig config, Clock clock) {
 		super(HASH_TYPE, SECRET_TYPE, BINARY_TYPE, COUNTER_TYPE, STRING_TYPE,
@@ -46,10 +49,11 @@ class HyperSqlDatabase extends JdbcDatabase {
 	}
 
 	@Override
-	public boolean open(@Nullable MigrationListener listener) throws DbException {
-		boolean reopen = config.databaseExists();
-		if (!reopen) config.getDatabaseDirectory().mkdirs();
-		super.open("org.hsqldb.jdbc.JDBCDriver", reopen, listener);
+	public boolean open(SecretKey key, @Nullable MigrationListener listener)
+			throws DbException {
+		this.key = key;
+		boolean reopen = !config.getDatabaseDirectory().mkdirs();
+		super.open("org.hsqldb.jdbc.JDBCDriver", reopen, key, listener);
 		return reopen;
 	}
 
@@ -93,7 +97,7 @@ class HyperSqlDatabase extends JdbcDatabase {
 
 	@Override
 	protected Connection createConnection() throws SQLException {
-		SecretKey key = config.getEncryptionKey();
+		SecretKey key = this.key;
 		if (key == null) throw new IllegalStateException();
 		String hex = StringUtils.toHexString(key.getBytes());
 		return DriverManager.getConnection(url + ";crypt_key=" + hex);

bramble-core/src/main/java/org/briarproject/bramble/db/JdbcDatabase.java

@@ -328,7 +328,7 @@ abstract class JdbcDatabase implements Database<Connection> {
 		this.clock = clock;
 	}
 
-	protected void open(String driverClass, boolean reopen,
+	protected void open(String driverClass, boolean reopen, SecretKey key,
 			@Nullable MigrationListener listener) throws DbException {
 		// Load the JDBC driver
 		try {

bramble-core/src/main/java/org/briarproject/bramble/identity/IdentityManagerImpl.java

@@ -1,10 +1,13 @@
 package org.briarproject.bramble.identity;
 
 import org.briarproject.bramble.api.contact.Contact;
+import org.briarproject.bramble.api.crypto.CryptoComponent;
+import org.briarproject.bramble.api.crypto.KeyPair;
 import org.briarproject.bramble.api.db.DatabaseComponent;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.identity.Author.Status;
+import org.briarproject.bramble.api.identity.AuthorFactory;
 import org.briarproject.bramble.api.identity.AuthorId;
 import org.briarproject.bramble.api.identity.IdentityManager;
 import org.briarproject.bramble.api.identity.LocalAuthor;
@@ -21,6 +24,8 @@ import static org.briarproject.bramble.api.identity.Author.Status.OURSELVES;
 import static org.briarproject.bramble.api.identity.Author.Status.UNKNOWN;
 import static org.briarproject.bramble.api.identity.Author.Status.UNVERIFIED;
 import static org.briarproject.bramble.api.identity.Author.Status.VERIFIED;
+import static org.briarproject.bramble.util.LogUtils.logDuration;
+import static org.briarproject.bramble.util.LogUtils.now;
 
 @ThreadSafe
 @NotNullByDefault
@@ -30,25 +35,51 @@ class IdentityManagerImpl implements IdentityManager {
 			Logger.getLogger(IdentityManagerImpl.class.getName());
 
 	private final DatabaseComponent db;
+	private final CryptoComponent crypto;
+	private final AuthorFactory authorFactory;
 
 	// The local author is immutable so we can cache it
 	@Nullable
 	private volatile LocalAuthor cachedAuthor;
 
 	@Inject
-	IdentityManagerImpl(DatabaseComponent db) {
+	IdentityManagerImpl(DatabaseComponent db, CryptoComponent crypto,
+			AuthorFactory authorFactory) {
 		this.db = db;
+		this.crypto = crypto;
+		this.authorFactory = authorFactory;
 	}
 
 	@Override
-	public void registerLocalAuthor(LocalAuthor localAuthor)
-			throws DbException {
+	public LocalAuthor createLocalAuthor(String name) {
+		long start = now();
+		KeyPair keyPair = crypto.generateSignatureKeyPair();
+		byte[] publicKey = keyPair.getPublic().getEncoded();
+		byte[] privateKey = keyPair.getPrivate().getEncoded();
+		LocalAuthor localAuthor = authorFactory.createLocalAuthor(name,
+				publicKey, privateKey);
+		logDuration(LOG, "Creating local author", start);
+		return localAuthor;
+	}
+
+	@Override
+	public void registerLocalAuthor(LocalAuthor a) {
+		cachedAuthor = a;
+		LOG.info("Local author registered");
+	}
+
+	@Override
+	public void storeLocalAuthor() throws DbException {
+		LocalAuthor cached = cachedAuthor;
+		if (cached == null) {
+			LOG.info("No local author to store");
+			return;
+		}
 		Transaction txn = db.startTransaction(false);
 		try {
-			db.addLocalAuthor(txn, localAuthor);
+			db.addLocalAuthor(txn, cached);
 			db.commitTransaction(txn);
-			cachedAuthor = localAuthor;
-			LOG.info("Local author registered");
+			LOG.info("Local author stored");
 		} finally {
 			db.endTransaction(txn);
 		}

bramble-core/src/main/java/org/briarproject/bramble/lifecycle/LifecycleManagerImpl.java

@@ -1,7 +1,6 @@
 package org.briarproject.bramble.lifecycle;
 
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-import org.briarproject.bramble.api.crypto.KeyPair;
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.DataTooNewException;
 import org.briarproject.bramble.api.db.DataTooOldException;
 import org.briarproject.bramble.api.db.DatabaseComponent;
@@ -9,9 +8,7 @@ import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.MigrationListener;
 import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.event.EventBus;
-import org.briarproject.bramble.api.identity.AuthorFactory;
 import org.briarproject.bramble.api.identity.IdentityManager;
-import org.briarproject.bramble.api.identity.LocalAuthor;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager;
 import org.briarproject.bramble.api.lifecycle.Service;
 import org.briarproject.bramble.api.lifecycle.ServiceException;
@@ -26,7 +23,6 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Semaphore;
 import java.util.logging.Logger;
 
-import javax.annotation.Nullable;
 import javax.annotation.concurrent.ThreadSafe;
 import javax.inject.Inject;
 
@@ -60,8 +56,6 @@ class LifecycleManagerImpl implements LifecycleManager, MigrationListener {
 	private final List<Service> services;
 	private final List<Client> clients;
 	private final List<ExecutorService> executors;
-	private final CryptoComponent crypto;
-	private final AuthorFactory authorFactory;
 	private final IdentityManager identityManager;
 	private final Semaphore startStopSemaphore = new Semaphore(1);
 	private final CountDownLatch dbLatch = new CountDownLatch(1);
@@ -72,12 +66,9 @@ class LifecycleManagerImpl implements LifecycleManager, MigrationListener {
 
 	@Inject
 	LifecycleManagerImpl(DatabaseComponent db, EventBus eventBus,
-			CryptoComponent crypto, AuthorFactory authorFactory,
 			IdentityManager identityManager) {
 		this.db = db;
 		this.eventBus = eventBus;
-		this.crypto = crypto;
-		this.authorFactory = authorFactory;
 		this.identityManager = identityManager;
 		services = new CopyOnWriteArrayList<>();
 		clients = new CopyOnWriteArrayList<>();
@@ -104,25 +95,8 @@ class LifecycleManagerImpl implements LifecycleManager, MigrationListener {
 		executors.add(e);
 	}
 
-	private LocalAuthor createLocalAuthor(String nickname) {
-		long start = now();
-		KeyPair keyPair = crypto.generateSignatureKeyPair();
-		byte[] publicKey = keyPair.getPublic().getEncoded();
-		byte[] privateKey = keyPair.getPrivate().getEncoded();
-		LocalAuthor localAuthor = authorFactory
-				.createLocalAuthor(nickname, publicKey, privateKey);
-		logDuration(LOG, "Creating local author", start);
-		return localAuthor;
-	}
-
-	private void registerLocalAuthor(LocalAuthor author) throws DbException {
-		long start = now();
-		identityManager.registerLocalAuthor(author);
-		logDuration(LOG, "Registering local author", start);
-	}
-
 	@Override
-	public StartResult startServices(@Nullable String nickname) {
+	public StartResult startServices(SecretKey dbKey) {
 		if (!startStopSemaphore.tryAcquire()) {
 			LOG.info("Already starting or stopping");
 			return ALREADY_RUNNING;
@@ -131,13 +105,10 @@ class LifecycleManagerImpl implements LifecycleManager, MigrationListener {
 			LOG.info("Starting services");
 			long start = now();
 
-			boolean reopened = db.open(this);
+			boolean reopened = db.open(dbKey, this);
 			if (reopened) logDuration(LOG, "Reopening database", start);
 			else logDuration(LOG, "Creating database", start);
-
-			if (nickname != null) {
-				registerLocalAuthor(createLocalAuthor(nickname));
-			}
+			identityManager.storeLocalAuthor();
 
 			state = STARTING_SERVICES;
 			dbLatch.countDown();

bramble-core/src/main/java/org/briarproject/bramble/lifecycle/LifecycleModule.java

@@ -1,10 +1,5 @@
 package org.briarproject.bramble.lifecycle;
 
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-import org.briarproject.bramble.api.db.DatabaseComponent;
-import org.briarproject.bramble.api.event.EventBus;
-import org.briarproject.bramble.api.identity.AuthorFactory;
-import org.briarproject.bramble.api.identity.IdentityManager;
 import org.briarproject.bramble.api.lifecycle.IoExecutor;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager;
 import org.briarproject.bramble.api.lifecycle.ShutdownManager;
@@ -54,11 +49,9 @@ public class LifecycleModule {
 
 	@Provides
 	@Singleton
-	LifecycleManager provideLifecycleManager(DatabaseComponent db,
-			EventBus eventBus, CryptoComponent crypto,
-			AuthorFactory authorFactory, IdentityManager identityManager) {
-		return new LifecycleManagerImpl(db, eventBus, crypto, authorFactory,
-				identityManager);
+	LifecycleManager provideLifecycleManager(
+			LifecycleManagerImpl lifecycleManager) {
+		return lifecycleManager;
 	}
 
 	@Provides

bramble-core/src/test/java/org/briarproject/bramble/account/AccountManagerImplTest.java

@@ -0,0 +1,341 @@
+package org.briarproject.bramble.account;
+
+import org.briarproject.bramble.api.crypto.CryptoComponent;
+import org.briarproject.bramble.api.crypto.SecretKey;
+import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.identity.IdentityManager;
+import org.briarproject.bramble.api.identity.LocalAuthor;
+import org.briarproject.bramble.test.BrambleMockTestCase;
+import org.jmock.Expectations;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+import javax.annotation.Nullable;
+
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertNull;
+import static junit.framework.Assert.assertTrue;
+import static org.briarproject.bramble.test.TestUtils.deleteTestDirectory;
+import static org.briarproject.bramble.test.TestUtils.getLocalAuthor;
+import static org.briarproject.bramble.test.TestUtils.getRandomBytes;
+import static org.briarproject.bramble.test.TestUtils.getSecretKey;
+import static org.briarproject.bramble.test.TestUtils.getTestDirectory;
+import static org.briarproject.bramble.util.StringUtils.getRandomString;
+import static org.briarproject.bramble.util.StringUtils.toHexString;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+public class AccountManagerImplTest extends BrambleMockTestCase {
+
+	private final DatabaseConfig databaseConfig =
+			context.mock(DatabaseConfig.class);
+	private final CryptoComponent crypto = context.mock(CryptoComponent.class);
+	private final IdentityManager identityManager =
+			context.mock(IdentityManager.class);
+
+	private final SecretKey key = getSecretKey();
+	private final byte[] encryptedKey = getRandomBytes(123);
+	private final String encryptedKeyHex = toHexString(encryptedKey);
+	private final byte[] newEncryptedKey = getRandomBytes(123);
+	private final String newEncryptedKeyHex = toHexString(newEncryptedKey);
+	private final LocalAuthor localAuthor = getLocalAuthor();
+	private final String authorName = localAuthor.getName();
+	private final String password = getRandomString(10);
+	private final String newPassword = getRandomString(10);
+	private final File testDir = getTestDirectory();
+	private final File dbDir = new File(testDir, "db");
+	private final File keyDir = new File(testDir, "key");
+	private final File keyFile = new File(keyDir, "db.key");
+	private final File keyBackupFile = new File(keyDir, "db.key.bak");
+
+	private AccountManagerImpl accountManager;
+
+	@Before
+	public void setUp() {
+		context.checking(new Expectations() {{
+			allowing(databaseConfig).getDatabaseDirectory();
+			will(returnValue(dbDir));
+			allowing(databaseConfig).getDatabaseKeyDirectory();
+			will(returnValue(keyDir));
+		}});
+
+		accountManager =
+				new AccountManagerImpl(databaseConfig, crypto, identityManager);
+
+		assertFalse(keyFile.exists());
+		assertFalse(keyBackupFile.exists());
+	}
+
+	@Test
+	public void testSignInReturnsFalseIfDbKeyCannotBeLoaded() {
+		assertFalse(accountManager.signIn(password));
+		assertFalse(accountManager.hasDatabaseKey());
+
+		assertFalse(keyFile.exists());
+		assertFalse(keyBackupFile.exists());
+	}
+
+	@Test
+	public void testSignInReturnsFalseIfPasswordIsWrong() throws Exception {
+		context.checking(new Expectations() {{
+			oneOf(crypto).decryptWithPassword(encryptedKey, password);
+			will(returnValue(null));
+		}});
+
+		storeDatabaseKey(keyFile, encryptedKeyHex);
+		storeDatabaseKey(keyBackupFile, encryptedKeyHex);
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+
+		assertFalse(accountManager.signIn(password));
+		assertFalse(accountManager.hasDatabaseKey());
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+	}
+
+	@Test
+	public void testSignInReturnsTrueIfPasswordIsRight() throws Exception {
+		context.checking(new Expectations() {{
+			oneOf(crypto).decryptWithPassword(encryptedKey, password);
+			will(returnValue(key.getBytes()));
+		}});
+
+		storeDatabaseKey(keyFile, encryptedKeyHex);
+		storeDatabaseKey(keyBackupFile, encryptedKeyHex);
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+
+		assertTrue(accountManager.signIn(password));
+		assertTrue(accountManager.hasDatabaseKey());
+		SecretKey decrypted = accountManager.getDatabaseKey();
+		assertNotNull(decrypted);
+		assertArrayEquals(key.getBytes(), decrypted.getBytes());
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+	}
+
+	@Test
+	public void testDbKeyIsLoadedFromPrimaryFile() throws Exception {
+		storeDatabaseKey(keyFile, encryptedKeyHex);
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertFalse(keyBackupFile.exists());
+
+		assertEquals(encryptedKeyHex,
+				accountManager.loadEncryptedDatabaseKey());
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertFalse(keyBackupFile.exists());
+	}
+
+	@Test
+	public void testDbKeyIsLoadedFromBackupFile() throws Exception {
+		storeDatabaseKey(keyBackupFile, encryptedKeyHex);
+
+		assertFalse(keyFile.exists());
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+
+		assertEquals(encryptedKeyHex,
+				accountManager.loadEncryptedDatabaseKey());
+
+		assertFalse(keyFile.exists());
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+	}
+
+	@Test
+	public void testDbKeyIsNullIfNotFound() {
+		assertNull(accountManager.loadEncryptedDatabaseKey());
+
+		assertFalse(keyFile.exists());
+		assertFalse(keyBackupFile.exists());
+	}
+
+	@Test
+	public void testStoringDbKeyOverwritesPrimary() throws Exception {
+		storeDatabaseKey(keyFile, encryptedKeyHex);
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertFalse(keyBackupFile.exists());
+
+		assertTrue(accountManager.storeEncryptedDatabaseKey(
+				newEncryptedKeyHex));
+
+		assertEquals(newEncryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(newEncryptedKeyHex, loadDatabaseKey(keyBackupFile));
+	}
+
+	@Test
+	public void testStoringDbKeyOverwritesBackup() throws Exception {
+		storeDatabaseKey(keyBackupFile, encryptedKeyHex);
+
+		assertFalse(keyFile.exists());
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+
+		assertTrue(accountManager.storeEncryptedDatabaseKey(
+				newEncryptedKeyHex));
+
+		assertEquals(newEncryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(newEncryptedKeyHex, loadDatabaseKey(keyBackupFile));
+	}
+
+	@Test
+	public void testAccountExistsReturnsFalseIfDbKeyCannotBeLoaded() {
+		assertFalse(accountManager.accountExists());
+
+		assertFalse(keyFile.exists());
+		assertFalse(keyBackupFile.exists());
+	}
+
+	@Test
+	public void testAccountExistsReturnsFalseIfDbDirectoryDoesNotExist()
+			throws Exception {
+		storeDatabaseKey(keyFile, encryptedKeyHex);
+		storeDatabaseKey(keyBackupFile, encryptedKeyHex);
+
+		assertFalse(dbDir.exists());
+
+		assertFalse(accountManager.accountExists());
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+		assertFalse(dbDir.exists());
+	}
+
+	@Test
+	public void testAccountExistsReturnsFalseIfDbDirectoryIsNotDirectory()
+			throws Exception {
+		storeDatabaseKey(keyFile, encryptedKeyHex);
+		storeDatabaseKey(keyBackupFile, encryptedKeyHex);
+
+		assertTrue(dbDir.createNewFile());
+		assertFalse(dbDir.isDirectory());
+
+		assertFalse(accountManager.accountExists());
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+		assertTrue(dbDir.exists());
+		assertFalse(dbDir.isDirectory());
+	}
+
+	@Test
+	public void testAccountExistsReturnsTrueIfDbDirectoryIsDirectory()
+			throws Exception {
+		storeDatabaseKey(keyFile, encryptedKeyHex);
+		storeDatabaseKey(keyBackupFile, encryptedKeyHex);
+
+		assertTrue(dbDir.mkdirs());
+		assertTrue(dbDir.isDirectory());
+
+		assertTrue(accountManager.accountExists());
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+		assertTrue(dbDir.exists());
+		assertTrue(dbDir.isDirectory());
+	}
+
+	@Test
+	public void testCreateAccountStoresDbKey() throws Exception {
+		context.checking(new Expectations() {{
+			oneOf(identityManager).createLocalAuthor(authorName);
+			will(returnValue(localAuthor));
+			oneOf(identityManager).registerLocalAuthor(localAuthor);
+			oneOf(crypto).generateSecretKey();
+			will(returnValue(key));
+			oneOf(crypto).encryptWithPassword(key.getBytes(), password);
+			will(returnValue(encryptedKey));
+		}});
+
+		assertFalse(accountManager.hasDatabaseKey());
+
+		assertTrue(accountManager.createAccount(authorName, password));
+
+		assertTrue(accountManager.hasDatabaseKey());
+		SecretKey dbKey = accountManager.getDatabaseKey();
+		assertNotNull(dbKey);
+		assertArrayEquals(key.getBytes(), dbKey.getBytes());
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+	}
+
+	@Test
+	public void testChangePasswordReturnsFalseIfDbKeyCannotBeLoaded() {
+		assertFalse(accountManager.changePassword(password, newPassword));
+
+		assertFalse(keyFile.exists());
+		assertFalse(keyBackupFile.exists());
+	}
+
+	@Test
+	public void testChangePasswordReturnsFalseIfPasswordIsWrong()
+			throws Exception {
+		context.checking(new Expectations() {{
+			oneOf(crypto).decryptWithPassword(encryptedKey, password);
+			will(returnValue(null));
+		}});
+
+		storeDatabaseKey(keyFile, encryptedKeyHex);
+		storeDatabaseKey(keyBackupFile, encryptedKeyHex);
+
+		assertFalse(accountManager.changePassword(password, newPassword));
+
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(encryptedKeyHex, loadDatabaseKey(keyBackupFile));
+	}
+
+	@Test
+	public void testChangePasswordReturnsTrueIfPasswordIsRight()
+			throws Exception {
+		context.checking(new Expectations() {{
+			oneOf(crypto).decryptWithPassword(encryptedKey, password);
+			will(returnValue(key.getBytes()));
+			oneOf(crypto).encryptWithPassword(key.getBytes(), newPassword);
+			will(returnValue(newEncryptedKey));
+		}});
+
+		storeDatabaseKey(keyFile, encryptedKeyHex);
+		storeDatabaseKey(keyBackupFile, encryptedKeyHex);
+
+		assertTrue(accountManager.changePassword(password, newPassword));
+
+		assertEquals(newEncryptedKeyHex, loadDatabaseKey(keyFile));
+		assertEquals(newEncryptedKeyHex, loadDatabaseKey(keyBackupFile));
+	}
+
+	private void storeDatabaseKey(File f, String hex) throws IOException {
+		f.getParentFile().mkdirs();
+		FileOutputStream out = new FileOutputStream(f);
+		out.write(hex.getBytes("UTF-8"));
+		out.flush();
+		out.close();
+	}
+
+	@Nullable
+	private String loadDatabaseKey(File f) throws IOException {
+		BufferedReader reader = new BufferedReader(new InputStreamReader(
+				new FileInputStream(f), "UTF-8"));
+		String hex = reader.readLine();
+		reader.close();
+		return hex;
+	}
+
+	@After
+	public void tearDown() {
+		deleteTestDirectory(testDir);
+	}
+}

bramble-core/src/test/java/org/briarproject/bramble/db/DatabaseComponentImplTest.java

@@ -89,6 +89,7 @@ public class DatabaseComponentImplTest extends BrambleMockTestCase {
 			context.mock(ShutdownManager.class);
 	private final EventBus eventBus = context.mock(EventBus.class);
 
+	private final SecretKey key = getSecretKey();
 	private final Object txn = new Object();
 	private final ClientId clientId;
 	private final int majorVersion;
@@ -141,7 +142,7 @@ public class DatabaseComponentImplTest extends BrambleMockTestCase {
 		int shutdownHandle = 12345;
 		context.checking(new Expectations() {{
 			// open()
-			oneOf(database).open(null);
+			oneOf(database).open(key, null);
 			will(returnValue(false));
 			oneOf(shutdown).addShutdownHook(with(any(Runnable.class)));
 			will(returnValue(shutdownHandle));
@@ -208,7 +209,7 @@ public class DatabaseComponentImplTest extends BrambleMockTestCase {
 		DatabaseComponent db = createDatabaseComponent(database, eventBus,
 				shutdown);
 
-		assertFalse(db.open(null));
+		assertFalse(db.open(key, null));
 		Transaction transaction = db.startTransaction(false);
 		try {
 			db.addLocalAuthor(transaction, localAuthor);
@@ -1602,7 +1603,7 @@ public class DatabaseComponentImplTest extends BrambleMockTestCase {
 		MessageId messageId2 = new MessageId(getRandomId());
 		context.checking(new Expectations() {{
 			// open()
-			oneOf(database).open(null);
+			oneOf(database).open(key, null);
 			will(returnValue(false));
 			oneOf(shutdown).addShutdownHook(with(any(Runnable.class)));
 			will(returnValue(shutdownHandle));
@@ -1646,7 +1647,7 @@ public class DatabaseComponentImplTest extends BrambleMockTestCase {
 		DatabaseComponent db = createDatabaseComponent(database, eventBus,
 				shutdown);
 
-		assertFalse(db.open(null));
+		assertFalse(db.open(key, null));
 		Transaction transaction = db.startTransaction(false);
 		try {
 			db.addLocalMessage(transaction, message, metadata, true);

bramble-core/src/test/java/org/briarproject/bramble/db/DatabaseMigrationTest.java

@@ -1,5 +1,6 @@
 package org.briarproject.bramble.db;
 
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.DataTooNewException;
 import org.briarproject.bramble.api.db.DataTooOldException;
 import org.briarproject.bramble.api.db.DatabaseConfig;
@@ -26,6 +27,7 @@ import static java.util.Collections.singletonList;
 import static org.briarproject.bramble.db.DatabaseConstants.DB_SETTINGS_NAMESPACE;
 import static org.briarproject.bramble.db.DatabaseConstants.SCHEMA_VERSION_KEY;
 import static org.briarproject.bramble.db.JdbcDatabase.CODE_SCHEMA_VERSION;
+import static org.briarproject.bramble.test.TestUtils.getSecretKey;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
@@ -43,6 +45,7 @@ public abstract class DatabaseMigrationTest extends BrambleMockTestCase {
 
 	protected final DatabaseConfig config =
 			new TestDatabaseConfig(testDir, 1024 * 1024);
+	protected final SecretKey key = getSecretKey();
 	protected final Clock clock = new SystemClock();
 
 	abstract Database<Connection> createDatabase(
@@ -62,7 +65,7 @@ public abstract class DatabaseMigrationTest extends BrambleMockTestCase {
 	public void testDoesNotRunMigrationsWhenCreatingDatabase()
 			throws Exception {
 		Database<Connection> db = createDatabase(singletonList(migration));
-		assertFalse(db.open(null));
+		assertFalse(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		db.close();
 	}
@@ -72,14 +75,14 @@ public abstract class DatabaseMigrationTest extends BrambleMockTestCase {
 			throws Exception {
 		// Open the DB for the first time
 		Database<Connection> db = createDatabase(asList(migration, migration1));
-		assertFalse(db.open(null));
+		assertFalse(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		// Override the data schema version
 		setDataSchemaVersion(db, -1);
 		db.close();
 		// Reopen the DB - an exception should be thrown
 		db = createDatabase(asList(migration, migration1));
-		db.open(null);
+		db.open(key, null);
 	}
 
 	@Test
@@ -87,12 +90,12 @@ public abstract class DatabaseMigrationTest extends BrambleMockTestCase {
 			throws Exception {
 		// Open the DB for the first time
 		Database<Connection> db = createDatabase(asList(migration, migration1));
-		assertFalse(db.open(null));
+		assertFalse(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		db.close();
 		// Reopen the DB - migrations should not be run
 		db = createDatabase(asList(migration, migration1));
-		assertTrue(db.open(null));
+		assertTrue(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		db.close();
 	}
@@ -101,14 +104,14 @@ public abstract class DatabaseMigrationTest extends BrambleMockTestCase {
 	public void testThrowsExceptionIfDataIsNewerThanCode() throws Exception {
 		// Open the DB for the first time
 		Database<Connection> db = createDatabase(asList(migration, migration1));
-		assertFalse(db.open(null));
+		assertFalse(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		// Override the data schema version
 		setDataSchemaVersion(db, CODE_SCHEMA_VERSION + 1);
 		db.close();
 		// Reopen the DB - an exception should be thrown
 		db = createDatabase(asList(migration, migration1));
-		db.open(null);
+		db.open(key, null);
 	}
 
 	@Test(expected = DataTooOldException.class)
@@ -116,13 +119,13 @@ public abstract class DatabaseMigrationTest extends BrambleMockTestCase {
 			throws Exception {
 		// Open the DB for the first time
 		Database<Connection> db = createDatabase(emptyList());
-		assertFalse(db.open(null));
+		assertFalse(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		setDataSchemaVersion(db, CODE_SCHEMA_VERSION - 1);
 		db.close();
 		// Reopen the DB - an exception should be thrown
 		db = createDatabase(emptyList());
-		db.open(null);
+		db.open(key, null);
 	}
 
 	@Test(expected = DataTooOldException.class)
@@ -141,14 +144,14 @@ public abstract class DatabaseMigrationTest extends BrambleMockTestCase {
 
 		// Open the DB for the first time
 		Database<Connection> db = createDatabase(asList(migration, migration1));
-		assertFalse(db.open(null));
+		assertFalse(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		// Override the data schema version
 		setDataSchemaVersion(db, CODE_SCHEMA_VERSION - 3);
 		db.close();
 		// Reopen the DB - an exception should be thrown
 		db = createDatabase(asList(migration, migration1));
-		db.open(null);
+		db.open(key, null);
 	}
 
 	@Test
@@ -170,14 +173,14 @@ public abstract class DatabaseMigrationTest extends BrambleMockTestCase {
 
 		// Open the DB for the first time
 		Database<Connection> db = createDatabase(asList(migration, migration1));
-		assertFalse(db.open(null));
+		assertFalse(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		// Override the data schema version
 		setDataSchemaVersion(db, CODE_SCHEMA_VERSION - 2);
 		db.close();
 		// Reopen the DB - the first migration should be run
 		db = createDatabase(asList(migration, migration1));
-		assertTrue(db.open(null));
+		assertTrue(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		db.close();
 	}
@@ -202,14 +205,14 @@ public abstract class DatabaseMigrationTest extends BrambleMockTestCase {
 
 		// Open the DB for the first time
 		Database<Connection> db = createDatabase(asList(migration, migration1));
-		assertFalse(db.open(null));
+		assertFalse(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		// Override the data schema version
 		setDataSchemaVersion(db, CODE_SCHEMA_VERSION - 2);
 		db.close();
 		// Reopen the DB - both migrations should be run
 		db = createDatabase(asList(migration, migration1));
-		assertTrue(db.open(null));
+		assertTrue(db.open(key, null));
 		assertEquals(CODE_SCHEMA_VERSION, getDataSchemaVersion(db));
 		db.close();
 	}

bramble-core/src/test/java/org/briarproject/bramble/db/DatabasePerformanceComparisonTest.java

@@ -15,6 +15,7 @@ import java.util.List;
 import static org.briarproject.bramble.test.TestUtils.deleteTestDirectory;
 import static org.briarproject.bramble.test.TestUtils.getMean;
 import static org.briarproject.bramble.test.TestUtils.getMedian;
+import static org.briarproject.bramble.test.TestUtils.getSecretKey;
 import static org.briarproject.bramble.test.TestUtils.getStandardDeviation;
 import static org.briarproject.bramble.test.UTest.Z_CRITICAL_0_01;
 
@@ -71,7 +72,7 @@ public abstract class DatabasePerformanceComparisonTest
 			throws DbException {
 		Database<Connection> db = createDatabase(conditionA,
 				new TestDatabaseConfig(testDir, MAX_SIZE), new SystemClock());
-		db.open(null);
+		db.open(getSecretKey(), null);
 		return db;
 	}
 

bramble-core/src/test/java/org/briarproject/bramble/db/DatabaseTraceTest.java

@@ -16,6 +16,7 @@ import java.sql.Connection;
 import javax.annotation.Nullable;
 
 import static org.briarproject.bramble.test.TestUtils.deleteTestDirectory;
+import static org.briarproject.bramble.test.TestUtils.getSecretKey;
 
 public abstract class DatabaseTraceTest extends DatabasePerformanceTest {
 
@@ -43,7 +44,7 @@ public abstract class DatabaseTraceTest extends DatabasePerformanceTest {
 	private Database<Connection> openDatabase() throws DbException {
 		Database<Connection> db = createDatabase(
 				new TestDatabaseConfig(testDir, MAX_SIZE), new SystemClock());
-		db.open(null);
+		db.open(getSecretKey(), null);
 		return db;
 	}
 

bramble-core/src/test/java/org/briarproject/bramble/db/H2MigrationTest.java

@@ -9,8 +9,8 @@ import java.util.List;
 public class H2MigrationTest extends DatabaseMigrationTest {
 
 	@Override
-	Database<Connection> createDatabase(List<Migration<Connection>> migrations)
-			throws Exception {
+	Database<Connection> createDatabase(
+			List<Migration<Connection>> migrations) {
 		return new H2Database(config, clock) {
 			@Override
 			List<Migration<Connection>> getMigrations() {

bramble-core/src/test/java/org/briarproject/bramble/db/JdbcDatabaseTest.java

@@ -64,6 +64,7 @@ import static org.briarproject.bramble.test.TestUtils.getLocalAuthor;
 import static org.briarproject.bramble.test.TestUtils.getRandomBytes;
 import static org.briarproject.bramble.test.TestUtils.getRandomId;
 import static org.briarproject.bramble.test.TestUtils.getSecretKey;
+import static org.briarproject.bramble.test.TestUtils.getTestDirectory;
 import static org.briarproject.bramble.test.TestUtils.getTransportId;
 import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
@@ -79,7 +80,8 @@ public abstract class JdbcDatabaseTest extends BrambleTestCase {
 	private static final int ONE_MEGABYTE = 1024 * 1024;
 	private static final int MAX_SIZE = 5 * ONE_MEGABYTE;
 
-	private final File testDir = TestUtils.getTestDirectory();
+	private final SecretKey key = getSecretKey();
+	private final File testDir = getTestDirectory();
 	private final GroupId groupId;
 	private final ClientId clientId;
 	private final int majorVersion;
@@ -96,7 +98,7 @@ public abstract class JdbcDatabaseTest extends BrambleTestCase {
 	private final KeySetId keySetId, keySetId1;
 	private final Random random = new Random();
 
-	JdbcDatabaseTest() throws Exception {
+	JdbcDatabaseTest() {
 		clientId = getClientId();
 		majorVersion = 123;
 		group = getGroup(clientId, majorVersion);
@@ -1819,7 +1821,7 @@ public abstract class JdbcDatabaseTest extends BrambleTestCase {
 		Database<Connection> db = createDatabase(
 				new TestDatabaseConfig(testDir, MAX_SIZE), clock);
 		if (!resume) TestUtils.deleteTestDirectory(testDir);
-		db.open(null);
+		db.open(key, null);
 		return db;
 	}
 

bramble-core/src/test/java/org/briarproject/bramble/db/SingleDatabasePerformanceTest.java

@@ -13,6 +13,7 @@ import java.util.List;
 import static org.briarproject.bramble.test.TestUtils.deleteTestDirectory;
 import static org.briarproject.bramble.test.TestUtils.getMean;
 import static org.briarproject.bramble.test.TestUtils.getMedian;
+import static org.briarproject.bramble.test.TestUtils.getSecretKey;
 import static org.briarproject.bramble.test.TestUtils.getStandardDeviation;
 
 public abstract class SingleDatabasePerformanceTest
@@ -40,7 +41,7 @@ public abstract class SingleDatabasePerformanceTest
 	private Database<Connection> openDatabase() throws DbException {
 		Database<Connection> db = createDatabase(
 				new TestDatabaseConfig(testDir, MAX_SIZE), new SystemClock());
-		db.open(null);
+		db.open(getSecretKey(), null);
 		return db;
 	}
 

bramble-core/src/test/java/org/briarproject/bramble/identity/IdentityManagerImplTest.java

@@ -2,15 +2,21 @@ package org.briarproject.bramble.identity;
 
 import org.briarproject.bramble.api.contact.Contact;
 import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.crypto.CryptoComponent;
+import org.briarproject.bramble.api.crypto.KeyPair;
+import org.briarproject.bramble.api.crypto.PrivateKey;
+import org.briarproject.bramble.api.crypto.PublicKey;
 import org.briarproject.bramble.api.db.DatabaseComponent;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.identity.Author;
+import org.briarproject.bramble.api.identity.AuthorFactory;
 import org.briarproject.bramble.api.identity.AuthorId;
 import org.briarproject.bramble.api.identity.IdentityManager;
 import org.briarproject.bramble.api.identity.LocalAuthor;
 import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.jmock.Expectations;
+import org.junit.Before;
 import org.junit.Test;
 
 import java.util.ArrayList;
@@ -27,24 +33,48 @@ import static org.junit.Assert.assertEquals;
 
 public class IdentityManagerImplTest extends BrambleMockTestCase {
 
-	private final IdentityManager identityManager;
 	private final DatabaseComponent db = context.mock(DatabaseComponent.class);
+	private final CryptoComponent crypto = context.mock(CryptoComponent.class);
+	private final AuthorFactory authorFactory =
+			context.mock(AuthorFactory.class);
+	private final PublicKey publicKey = context.mock(PublicKey.class);
+	private final PrivateKey privateKey = context.mock(PrivateKey.class);
+
 	private final Transaction txn = new Transaction(null, false);
 	private final LocalAuthor localAuthor = getLocalAuthor();
 	private final Collection<LocalAuthor> localAuthors =
 			Collections.singletonList(localAuthor);
+	private final String authorName = localAuthor.getName();
+	private final KeyPair keyPair = new KeyPair(publicKey, privateKey);
+	private final byte[] publicKeyBytes = localAuthor.getPublicKey();
+	private final byte[] privateKeyBytes = localAuthor.getPrivateKey();
+	private IdentityManager identityManager;
 
-	public IdentityManagerImplTest() {
-		identityManager = new IdentityManagerImpl(db);
+	@Before
+	public void setUp() {
+		identityManager = new IdentityManagerImpl(db, crypto, authorFactory);
 	}
 
 	@Test
-	public void testRegisterLocalAuthor() throws DbException {
-		expectRegisterLocalAuthor();
-		identityManager.registerLocalAuthor(localAuthor);
+	public void testCreateLocalAuthor() {
+		context.checking(new Expectations() {{
+			oneOf(crypto).generateSignatureKeyPair();
+			will(returnValue(keyPair));
+			oneOf(publicKey).getEncoded();
+			will(returnValue(publicKeyBytes));
+			oneOf(privateKey).getEncoded();
+			will(returnValue(privateKeyBytes));
+			oneOf(authorFactory).createLocalAuthor(authorName,
+					publicKeyBytes, privateKeyBytes);
+			will(returnValue(localAuthor));
+		}});
+
+		assertEquals(localAuthor,
+				identityManager.createLocalAuthor(authorName));
 	}
 
-	private void expectRegisterLocalAuthor() throws DbException {
+	@Test
+	public void testRegisterAndStoreLocalAuthor() throws DbException {
 		context.checking(new Expectations() {{
 			oneOf(db).startTransaction(false);
 			will(returnValue(txn));
@@ -52,6 +82,10 @@ public class IdentityManagerImplTest extends BrambleMockTestCase {
 			oneOf(db).commitTransaction(txn);
 			oneOf(db).endTransaction(txn);
 		}});
+
+		identityManager.registerLocalAuthor(localAuthor);
+		assertEquals(localAuthor, identityManager.getLocalAuthor());
+		identityManager.storeLocalAuthor();
 	}
 
 	@Test
@@ -69,7 +103,6 @@ public class IdentityManagerImplTest extends BrambleMockTestCase {
 
 	@Test
 	public void testGetCachedLocalAuthor() throws DbException {
-		expectRegisterLocalAuthor();
 		identityManager.registerLocalAuthor(localAuthor);
 		assertEquals(localAuthor, identityManager.getLocalAuthor());
 	}

bramble-core/src/test/java/org/briarproject/bramble/test/TestDatabaseConfig.java

@@ -1,6 +1,5 @@
 package org.briarproject.bramble.test;
 
-import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.DatabaseConfig;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
@@ -11,7 +10,6 @@ public class TestDatabaseConfig implements DatabaseConfig {
 
 	private final File dbDir, keyDir;
 	private final long maxSize;
-	private volatile SecretKey key = new SecretKey(new byte[SecretKey.LENGTH]);
 
 	public TestDatabaseConfig(File testDir, long maxSize) {
 		dbDir = new File(testDir, "db");
@@ -19,13 +17,6 @@ public class TestDatabaseConfig implements DatabaseConfig {
 		this.maxSize = maxSize;
 	}
 
-	@Override
-	public boolean databaseExists() {
-		if (!dbDir.isDirectory()) return false;
-		File[] files = dbDir.listFiles();
-		return files != null && files.length > 0;
-	}
-
 	@Override
 	public File getDatabaseDirectory() {
 		return dbDir;
@@ -36,26 +27,6 @@ public class TestDatabaseConfig implements DatabaseConfig {
 		return keyDir;
 	}
 
-	@Override
-	public void setEncryptionKey(SecretKey key) {
-		this.key = key;
-	}
-
-	@Override
-	public SecretKey getEncryptionKey() {
-		return key;
-	}
-
-	@Override
-	public void setLocalAuthorName(String nickname) {
-
-	}
-
-	@Override
-	public String getLocalAuthorName() {
-		return null;
-	}
-
 	@Override
 	public long getMaxSize() {
 		return maxSize;

bramble-core/src/test/java/org/briarproject/bramble/test/TestLifecycleModule.java

@@ -1,5 +1,6 @@
 package org.briarproject.bramble.test;
 
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.lifecycle.IoExecutor;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager;
 import org.briarproject.bramble.api.lifecycle.Service;
@@ -11,7 +12,6 @@ import java.util.concurrent.Executor;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 
-import javax.annotation.Nullable;
 import javax.inject.Singleton;
 
 import dagger.Module;
@@ -40,7 +40,7 @@ public class TestLifecycleModule {
 			}
 
 			@Override
-			public StartResult startServices(@Nullable String nickname) {
+			public StartResult startServices(SecretKey dbKey) {
 				return StartResult.SUCCESS;
 			}
 
@@ -49,15 +49,15 @@ public class TestLifecycleModule {
 			}
 
 			@Override
-			public void waitForDatabase() throws InterruptedException {
+			public void waitForDatabase() {
 			}
 
 			@Override
-			public void waitForStartup() throws InterruptedException {
+			public void waitForStartup() {
 			}
 
 			@Override
-			public void waitForShutdown() throws InterruptedException {
+			public void waitForShutdown() {
 			}
 
 			@Override

briar-android/.gitignore

@@ -5,3 +5,9 @@ local.properties
 .settings
 src/main/assets/*.zip
 src/main/res/values-iw
+
+# Fastlane Screenshots
+/fastlane/metadata/android/screenshots.html
+/fastlane/metadata/android/*/images
+/fastlane/report.xml
+/fastlane/README.md

briar-android/build.gradle

@@ -49,6 +49,16 @@ dependencies {
 	testImplementation "org.jmock:jmock-legacy:2.8.2"
 	testImplementation "org.hamcrest:hamcrest-library:1.3"
 	testImplementation "org.hamcrest:hamcrest-core:1.3"
+
+	def espressoVersion = '3.0.2'
+	androidTestImplementation "com.android.support.test.espresso:espresso-core:$espressoVersion"
+	androidTestImplementation "com.android.support.test.espresso:espresso-contrib:$espressoVersion"
+	androidTestImplementation "com.android.support.test.espresso:espresso-intents:$espressoVersion"
+	androidTestImplementation "tools.fastlane:screengrab:1.1.0"
+	androidTestImplementation "com.android.support.test.uiautomator:uiautomator-v18:2.1.3"
+	androidTestAnnotationProcessor "com.google.dagger:dagger-compiler:2.0.2"
+	androidTestCompileOnly 'javax.annotation:jsr250-api:1.0'
+	androidTestImplementation 'junit:junit:4.12'
 }
 
 dependencyVerification {
@@ -66,6 +76,14 @@ dependencyVerification {
 			'com.almworks.sqlite4java:sqlite4java:0.282:sqlite4java-0.282.jar:9e1d8dd83ca6003f841e3af878ce2dc7c22497493a7bb6d1b62ec1b0d0a83c05',
 			'com.android.support.constraint:constraint-layout-solver:1.1.0:constraint-layout-solver-1.1.0.jar:fcb4c7d705754ca3d69b1b2c3caf445a425599fda8caabbcf855d98ea0663e4e',
 			'com.android.support.constraint:constraint-layout:1.1.0:constraint-layout-1.1.0.aar:d490188709b7bb2f11609beadd7e5eb7538892f308828ec3ff261a74e6ecf47e',
+			'com.android.support.test.espresso:espresso-contrib:3.0.2:espresso-contrib-3.0.2.aar:eacb4a10dde5597b8a6b8668804d4b63e3ae2d46a78192068532922fec0b4a66',
+			'com.android.support.test.espresso:espresso-core:3.0.2:espresso-core-3.0.2.aar:f40bf62e26e6f95a9c376c4e318415a77053b7dbb7ec12688eb6fab93dffdf73',
+			'com.android.support.test.espresso:espresso-idling-resource:3.0.2:espresso-idling-resource-3.0.2.aar:c6485150f9f4aea1ce9d138f3d60d82ebed3fe35b340a8b1dc975ff01f3b17b2',
+			'com.android.support.test.espresso:espresso-intents:3.0.2:espresso-intents-3.0.2.aar:556f99e8c8723a9ef313ed816fb9074d65903c6767521a66b099720d2cc21f10',
+			'com.android.support.test.uiautomator:uiautomator-v18:2.1.3:uiautomator-v18-2.1.3.aar:15e6b3c7104859630bf844e31805aa7cb2eb4b385e6119ab34132c8258eee2c4',
+			'com.android.support.test:monitor:1.0.2:monitor-1.0.2.aar:38ef4fa98a32dc55550ff49bb36a583e178b3a9b830fcb8dcc27bfc4254bc2bc',
+			'com.android.support.test:rules:1.0.2:rules-1.0.2.aar:7ddad387d1a16d4dbdbefacee070d34574e565b008117c1a163edac8ae02a6aa',
+			'com.android.support.test:runner:1.0.2:runner-1.0.2.aar:f04b9ae342975ba1cb3e4a06e13426e3e6b8a73faa45acba604493d83c9a4f00',
 			'com.android.support:animated-vector-drawable:27.1.1:animated-vector-drawable-27.1.1.aar:59670473f6e98fda792f7bef25dd7292b0a3106031c7a5e30eb020bf26f077bd',
 			'com.android.support:appcompat-v7:27.1.1:appcompat-v7-27.1.1.aar:0c7808fbbc5838d831e32e3c0a6f84e1f2c981deb8f11e010650f2b57923a335',
 			'com.android.support:cardview-v7:27.1.1:cardview-v7-27.1.1.aar:8ed955dd037d82a7b4bbcaedb4f896523c3e4c1bf3ca698ce807c350767a2886',
@@ -109,8 +127,10 @@ dependencyVerification {
 			'com.android.tools:sdk-common:26.1.3:sdk-common-26.1.3.jar:1948603ca9ff22c7ebb3178000bffa3a9dd2ca1cc5cb0c793cae08468b8fcfc1',
 			'com.android.tools:sdklib:26.1.3:sdklib-26.1.3.jar:4adcfaad9514607098d2c51503c39811112d3050f4d1e744c01c7f08f591032b',
 			'com.github.bumptech.glide:glide:3.8.0:glide-3.8.0.jar:750d9e7b940dc0ee48f8680623b55d46e14e8727acc922d7b156e57e7c549655',
+			'com.google.android.apps.common.testing.accessibility.framework:accessibility-test-framework:2.0:accessibility-test-framework-2.0.jar:cdf16ef8f5b8023d003ce3cc1b0d51bda737762e2dab2fedf43d1c4292353f7f',
 			'com.google.android.apps.common.testing.accessibility.framework:accessibility-test-framework:2.1:accessibility-test-framework-2.1.jar:7b0aa6ed7553597ce0610684a9f7eca8021eee218f2e2f427c04a7fbf5f920bd',
 			'com.google.code.findbugs:jsr305:1.3.9:jsr305-1.3.9.jar:905721a0eea90a81534abb7ee6ef4ea2e5e645fa1def0a5cd88402df1b46c9ed',
+			'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
 			'com.google.code.gson:gson:2.7:gson-2.7.jar:2d43eb5ea9e133d2ee2405cc14f5ee08951b8361302fdd93494a3a997b508d32',
 			'com.google.dagger:dagger-compiler:2.0.2:dagger-compiler-2.0.2.jar:b74bc9de063dd4c6400b232231f2ef5056145b8fbecbf5382012007dd1c071b3',
 			'com.google.dagger:dagger-producers:2.0-beta:dagger-producers-2.0-beta.jar:99ec15e8a0507ba569e7655bc1165ee5e5ca5aa914b3c8f7e2c2458f724edd6b',
@@ -127,6 +147,7 @@ dependencyVerification {
 			'com.googlecode.json-simple:json-simple:1.1:json-simple-1.1.jar:2d9484f4c649f708f47f9a479465fc729770ee65617dca3011836602264f6439',
 			'com.ibm.icu:icu4j:53.1:icu4j-53.1.jar:e37a4467bac5cdeb02c5c4b8e5063d2f4e67b69e3c7df6d6b610f13185572bab',
 			'com.jpardogo.materialtabstrip:library:1.1.0:library-1.1.0.aar:24d19232b319f8c73e25793432357919a7ed972186f57a3b2c9093ea74ad8311',
+			'com.squareup:javawriter:2.1.1:javawriter-2.1.1.jar:f699823d0081f69cbb676c1845ea222e0ada79bc88a53e5d22d8bd02d328f57e',
 			'com.squareup:javawriter:2.5.0:javawriter-2.5.0.jar:fcfb09fb0ea0aa97d3cfe7ea792398081348e468f126b3603cb3803f240197f0',
 			'com.sun.activation:javax.activation:1.2.0:javax.activation-1.2.0.jar:993302b16cd7056f21e779cc577d175a810bb4900ef73cd8fbf2b50f928ba9ce',
 			'com.sun.istack:istack-commons-runtime:2.21:istack-commons-runtime-2.21.jar:c33e67a0807095f02a0e2da139412dd7c4f9cc1a4c054b3e434f96831ba950f4',
@@ -181,6 +202,7 @@ dependencyVerification {
 			'org.glassfish.jaxb:jaxb-runtime:2.2.11:jaxb-runtime-2.2.11.jar:a874f2351cfba8e2946be3002d10c18a6da8f21b52ba2acf52f2b85d5520ed70',
 			'org.glassfish.jaxb:txw2:2.2.11:txw2-2.2.11.jar:272a3ccad45a4511351920cd2a8633c53cab8d5220c7a92954da5526bb5eafea',
 			'org.hamcrest:hamcrest-core:1.3:hamcrest-core-1.3.jar:66fdef91e9739348df7a096aa384a5685f4e875584cce89386a7a47251c4d8e9',
+			'org.hamcrest:hamcrest-integration:1.3:hamcrest-integration-1.3.jar:70f418efbb506c5155da5f9a5a33262ea08a9e4d7fea186aa9015c41a7224ac2',
 			'org.hamcrest:hamcrest-library:1.3:hamcrest-library-1.3.jar:711d64522f9ec410983bd310934296da134be4254a125080a0416ec178dfad1c',
 			'org.jetbrains.kotlin:kotlin-reflect:1.2.0:kotlin-reflect-1.2.0.jar:4f48a872bad6e4d9c053f4ad610d11e4012ad7e58dc19a03dd5eb811f36069dd',
 			'org.jetbrains.kotlin:kotlin-stdlib-jre7:1.2.0:kotlin-stdlib-jre7-1.2.0.jar:c7a20fb951d437797afe8980aff6c1e5a03f310c661ba58ba1d4fa90cb0f2926',
@@ -212,6 +234,7 @@ dependencyVerification {
 			'org.robolectric:shadows-framework:3.5.1:shadows-framework-3.5.1.jar:597b54cc1a494799d783921c6ac04352f33e94fca8e00f299d4ca192db79e3fc',
 			'org.robolectric:shadows-support-v4:3.0:shadows-support-v4-3.0.jar:66bcc3257b037d72998e860d67b1bc58215b7eeac8ad860fcc3e613332d88619',
 			'org.robolectric:utils:3.5.1:utils-3.5.1.jar:d7d77326867e6d903156ebb18c244819b26aebe3aa82a1c57081081a0b6c4f63',
+			'tools.fastlane:screengrab:1.1.0:screengrab-1.1.0.aar:03ce3868ee8a0082d14e7a1de0999f91531c0cc794392688beb08ee9bc4495fd',
 			'uk.co.samuelwall:material-tap-target-prompt:2.8.0:material-tap-target-prompt-2.8.0.aar:ac70770c05bbc4675a1d5712c0e53d46ee4fa961b74947589fce50d8003065ec',
 			'xmlpull:xmlpull:1.1.3.1:xmlpull-1.1.3.1.jar:34e08ee62116071cbb69c0ed70d15a7a5b208d62798c59f2120bb8929324cb63',
 			'xpp3:xpp3_min:1.1.4c:xpp3_min-1.1.4c.jar:bfc90e9e32d0eab1f397fb974b5f150a815188382ac41f372a7149d5bc178008',
@@ -238,27 +261,25 @@ android {
 	defaultConfig {
 		minSdkVersion 14
 		targetSdkVersion 26
-		versionCode 10012
-		versionName "1.0.12"
+		versionCode 10013
+		versionName "1.0.13"
 		applicationId "org.briarproject.briar.android"
-		resValue "string", "app_package", "org.briarproject.briar.android"
-		resValue "string", "app_name", "Briar"
 		buildConfigField "String", "GitHash",
 				"\"${getStdout(['git', 'rev-parse', '--short=7', 'HEAD'], 'No commit hash')}\""
 		def now = (long) (System.currentTimeMillis() / 1000)
 		buildConfigField "Long", "BuildTimestamp",
 				"${getStdout(['git', 'log', '-n', '1', '--format=%ct'], now)}000L"
+		testInstrumentationRunner 'org.briarproject.briar.android.test.BriarTestRunner'
 	}
 
 	buildTypes {
 		debug {
 			applicationIdSuffix ".debug"
-			resValue "string", "app_package", "org.briarproject.briar.android.debug"
-			resValue "string", "app_name", "Briar Debug"
 			shrinkResources false
 			minifyEnabled true
 			crunchPngs false
 			proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
+			testProguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt', 'proguard-test.txt'
 		}
 		release {
 			shrinkResources false
@@ -268,6 +289,23 @@ android {
 		}
 	}
 
+	flavorDimensions "version"
+	productFlavors {
+		screenshot {
+			dimension "version"
+			minSdkVersion 18
+			applicationIdSuffix ".screenshot" // = org.briarproject.briar.android.screenshot.debug
+		}
+		main {
+			dimension "version"
+		}
+	}
+	variantFilter { variant ->
+		if (variant.flavors*.name.contains("screenshot") && variant.buildType.name == "release") {
+			setIgnore(true)
+		}
+	}
+
 	compileOptions {
 		sourceCompatibility JavaVersion.VERSION_1_8
 		targetCompatibility JavaVersion.VERSION_1_8

briar-android/fastlane/Appfile

@@ -0,0 +1,2 @@
+json_key_file("") # Path to the json secret file - Follow https://docs.fastlane.tools/actions/supply/#setup to get one
+package_name("org.briarproject.briar.android")

briar-android/fastlane/Fastfile

@@ -0,0 +1,30 @@
+# This file contains the fastlane.tools configuration
+# You can find the documentation at https://docs.fastlane.tools
+#
+# For a list of all available actions, check out
+#
+#     https://docs.fastlane.tools/actions
+#
+# For a list of all available plugins, check out
+#
+#     https://docs.fastlane.tools/plugins/available-plugins
+#
+
+# Uncomment the line if you want fastlane to automatically update itself
+# update_fastlane
+
+default_platform(:android)
+
+platform :android do
+  desc "Takes screenshots for manual and Google Play"
+  lane :screenshots do
+    gradle(project_dir: "..", task: "assembleScreenshot assembleAndroidTest")
+    system './demo-mode-activate.sh'
+    capture_android_screenshots
+    system './demo-mode-deactivate.sh'
+    system './rename_screenshots.py'
+  end
+end
+
+
+# vi:syntax=ruby

briar-android/fastlane/Screengrabfile

@@ -0,0 +1,9 @@
+app_package_name "org.briarproject.briar.android.screenshot.debug"
+locales ['en-US']
+use_tests_in_classes([
+    'org.briarproject.briar.android.login.SetupActivityScreenshotTest',
+    'org.briarproject.briar.android.settings.SettingsActivityScreenshotTest',
+])
+app_apk_path "build/outputs/apk/screenshot/debug/briar-android-screenshot-debug.apk"
+tests_apk_path "build/outputs/apk/androidTest/screenshot/debug/briar-android-screenshot-debug-androidTest.apk"
+test_instrumentation_runner "org.briarproject.briar.android.test.BriarTestRunner"

briar-android/fastlane/demo-mode-activate.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+adb shell settings put global sysui_demo_allowed 1
+adb shell am broadcast -a com.android.systemui.demo -e command enter
+adb shell am broadcast -a com.android.systemui.demo -e command notifications -e visible false
+adb shell am broadcast -a com.android.systemui.demo -e command battery -e level 100
+adb shell am broadcast -a com.android.systemui.demo -e command network -e wifi show
+adb shell am broadcast -a com.android.systemui.demo -e command clock -e hhmm 1337

briar-android/fastlane/demo-mode-deactivate.sh

@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+adb shell am broadcast -a com.android.systemui.demo -e command exit

briar-android/fastlane/rename_screenshots.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+
+# Author: Torsten Grote
+# License: GPLv3 or later
+
+import os
+import re
+import glob
+
+METADATA_PATH = 'metadata/android'
+GLOB = '/*/images/phoneScreenshots/*.png'
+
+REGEX = re.compile(r'(^\w+)_\d{13}\.png$')
+REGEX_IN_FILE = re.compile(r'(\w+)_\d{13}\.png', re.MULTILINE)
+PATH = os.path.dirname(os.path.realpath(__file__))
+
+
+def main():
+    for path in glob.glob("%s%s" % (os.path.join(PATH, METADATA_PATH), GLOB)):
+        filename = os.path.basename(path)
+        match = REGEX.match(filename)
+        if match:
+            directory = os.path.dirname(path)
+            new_filename = "%s.png" % match.group(1)
+            new_path = os.path.join(directory, new_filename)
+            os.rename(path, new_path)
+            print("Renaming\n  %s\nto\n  %s\n" % (path, new_path))
+        else:
+            print("Warning: Path did not match %s" % path)
+
+    # rename fields also in screenshot overview file
+    overview = os.path.join(PATH, METADATA_PATH, 'screenshots.html')
+    with open(overview, 'r') as f:
+        file_data = f.read()
+
+    file_data = REGEX_IN_FILE.sub(r'\1.png', file_data)
+
+    with open(overview, 'w') as f:
+        f.write(file_data)
+
+
+if __name__ == "__main__":
+    main()

briar-android/proguard-test.txt

@@ -0,0 +1,15 @@
+-dontwarn android.test.**
+-dontwarn android.support.test.**
+-dontnote android.support.test.**
+-dontwarn com.googlecode.eyesfree.compat.CompatUtils
+
+-keep class org.xmlpull.v1.** { *; }
+-dontwarn org.xmlpull.v1.**
+
+-keep class org.junit.** { *; }
+-dontwarn org.junit.**
+
+-keep class junit.** { *; }
+-dontwarn junit.**
+
+-dontwarn org.briarproject.briar.android.BriarTestComponentApplication

briar-android/src/androidTest/java/org/briarproject/briar/android/BriarTestComponentApplication.java

@@ -0,0 +1,20 @@
+package org.briarproject.briar.android;
+
+import org.briarproject.bramble.BrambleCoreModule;
+import org.briarproject.briar.BriarCoreModule;
+
+public class BriarTestComponentApplication extends BriarApplicationImpl {
+
+	@Override
+	protected AndroidComponent createApplicationComponent() {
+		AndroidComponent component = DaggerBriarUiTestComponent.builder()
+				.appModule(new AppModule(this)).build();
+		// We need to load the eager singletons directly after making the
+		// dependency graphs
+		BrambleCoreModule.initEagerSingletons(component);
+		BriarCoreModule.initEagerSingletons(component);
+		AndroidEagerSingletons.initEagerSingletons(component);
+		return component;
+	}
+
+}

briar-android/src/androidTest/java/org/briarproject/briar/android/BriarUiTestComponent.java

@@ -0,0 +1,31 @@
+package org.briarproject.briar.android;
+
+import org.briarproject.bramble.BrambleAndroidModule;
+import org.briarproject.bramble.BrambleCoreModule;
+import org.briarproject.bramble.account.BriarAccountModule;
+import org.briarproject.briar.BriarCoreModule;
+import org.briarproject.briar.android.login.PasswordActivityTest;
+import org.briarproject.briar.android.login.SetupActivityScreenshotTest;
+import org.briarproject.briar.android.navdrawer.NavDrawerActivityTest;
+import org.briarproject.briar.android.settings.SettingsActivityScreenshotTest;
+
+import javax.inject.Singleton;
+
+import dagger.Component;
+
+@Singleton
+@Component(modules = {
+		AppModule.class,
+		BriarCoreModule.class,
+		BrambleAndroidModule.class,
+		BriarAccountModule.class,
+		BrambleCoreModule.class
+})
+public interface BriarUiTestComponent extends AndroidComponent {
+
+	void inject(SetupActivityScreenshotTest test);
+	void inject(PasswordActivityTest test);
+	void inject(NavDrawerActivityTest test);
+	void inject(SettingsActivityScreenshotTest test);
+
+}

briar-android/src/androidTest/java/org/briarproject/briar/android/login/SetupActivityScreenshotTest.java

@@ -0,0 +1,106 @@
+package org.briarproject.briar.android.login;
+
+import android.support.test.espresso.intent.rule.IntentsTestRule;
+import android.support.test.runner.AndroidJUnit4;
+import android.support.test.uiautomator.UiDevice;
+import android.support.test.uiautomator.UiObject;
+import android.support.test.uiautomator.UiSelector;
+
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.BriarUiTestComponent;
+import org.briarproject.briar.android.test.ScreenshotTest;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static android.support.test.InstrumentationRegistry.getInstrumentation;
+import static android.support.test.InstrumentationRegistry.getTargetContext;
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.action.ViewActions.click;
+import static android.support.test.espresso.action.ViewActions.typeText;
+import static android.support.test.espresso.assertion.ViewAssertions.matches;
+import static android.support.test.espresso.intent.Intents.intended;
+import static android.support.test.espresso.intent.matcher.IntentMatchers.hasComponent;
+import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static android.support.test.espresso.matcher.ViewMatchers.isRoot;
+import static android.support.test.espresso.matcher.ViewMatchers.withId;
+import static android.support.test.espresso.matcher.ViewMatchers.withText;
+import static android.support.test.runner.lifecycle.Stage.PAUSED;
+import static junit.framework.Assert.assertTrue;
+import static org.briarproject.briar.android.test.ViewActions.waitForActivity;
+import static org.briarproject.briar.android.test.ViewActions.waitUntilMatches;
+import static org.briarproject.briar.android.util.UiUtils.needsDozeWhitelisting;
+
+
+@RunWith(AndroidJUnit4.class)
+public class SetupActivityScreenshotTest extends ScreenshotTest {
+
+	@Rule
+	public IntentsTestRule<SetupActivity> testRule =
+			new IntentsTestRule<SetupActivity>(SetupActivity.class) {
+				@Override
+				protected void beforeActivityLaunched() {
+					super.beforeActivityLaunched();
+					accountManager.deleteAccount();
+				}
+			};
+
+	@Override
+	protected void inject(BriarUiTestComponent component) {
+		component.inject(this);
+	}
+
+	@Test
+	public void createAccount() throws Exception {
+		// Enter username
+		onView(withText(R.string.setup_title))
+				.check(matches(isDisplayed()));
+		onView(withId(R.id.nickname_entry))
+				.check(matches(isDisplayed()))
+				.perform(typeText(USERNAME));
+		onView(withId(R.id.nickname_entry))
+				.perform(waitUntilMatches(withText(USERNAME)));
+
+		screenshot("manual_create_account");
+
+		onView(withId(R.id.next))
+				.check(matches(isDisplayed()))
+				.perform(click());
+
+		// Enter password
+		onView(withId(R.id.password_entry))
+				.check(matches(isDisplayed()))
+				.perform(typeText(PASSWORD));
+		onView(withId(R.id.password_confirm))
+				.check(matches(isDisplayed()))
+				.perform(typeText(PASSWORD));
+		onView(withId(R.id.next))
+				.check(matches(isDisplayed()))
+				.perform(click());
+
+		// White-list Doze if needed
+		if (needsDozeWhitelisting(getTargetContext())) {
+			onView(withText(R.string.setup_doze_button))
+					.check(matches(isDisplayed()))
+					.perform(click());
+			UiDevice device = UiDevice.getInstance(getInstrumentation());
+			UiObject allowButton = device.findObject(
+					new UiSelector().className("android.widget.Button")
+							.index(1));
+			allowButton.click();
+			onView(withId(R.id.next))
+					.check(matches(isDisplayed()))
+					.perform(click());
+		}
+
+		// wait for OpenDatabaseActivity to show up
+		onView(withId(R.id.progress))
+				.check(matches(isDisplayed()));
+		onView(isRoot())
+				.perform(waitForActivity(testRule.getActivity(), PAUSED));
+		intended(hasComponent(OpenDatabaseActivity.class.getName()));
+
+		assertTrue(accountManager.hasDatabaseKey());
+	}
+
+}

briar-android/src/androidTest/java/org/briarproject/briar/android/navdrawer/NavDrawerActivityTest.java

@@ -0,0 +1,48 @@
+package org.briarproject.briar.android.navdrawer;
+
+import android.support.test.espresso.contrib.DrawerActions;
+import android.support.test.runner.AndroidJUnit4;
+import android.view.Gravity;
+
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.BriarUiTestComponent;
+import org.briarproject.briar.android.settings.SettingsActivity;
+import org.briarproject.briar.android.test.ScreenshotTest;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.action.ViewActions.click;
+import static android.support.test.espresso.assertion.ViewAssertions.matches;
+import static android.support.test.espresso.contrib.DrawerMatchers.isClosed;
+import static android.support.test.espresso.intent.Intents.intended;
+import static android.support.test.espresso.intent.matcher.IntentMatchers.hasComponent;
+import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static android.support.test.espresso.matcher.ViewMatchers.withId;
+import static android.support.test.espresso.matcher.ViewMatchers.withText;
+
+@RunWith(AndroidJUnit4.class)
+public class NavDrawerActivityTest extends ScreenshotTest {
+
+	@Rule
+	public CleanAccountTestRule<NavDrawerActivity> testRule =
+			new CleanAccountTestRule<>(NavDrawerActivity.class);
+
+	@Override
+	protected void inject(BriarUiTestComponent component) {
+		component.inject(this);
+	}
+
+	@Test
+	public void openSettings() {
+		onView(withId(R.id.drawer_layout))
+				.check(matches(isClosed(Gravity.START)))
+				.perform(DrawerActions.open());
+		onView(withText(R.string.settings_button))
+				.check(matches(isDisplayed()))
+				.perform(click());
+		intended(hasComponent(SettingsActivity.class.getName()));
+	}
+
+}

briar-android/src/androidTest/java/org/briarproject/briar/android/settings/SettingsActivityScreenshotTest.java

@@ -0,0 +1,70 @@
+package org.briarproject.briar.android.settings;
+
+import android.content.Intent;
+import android.support.test.espresso.contrib.DrawerActions;
+import android.support.test.runner.AndroidJUnit4;
+import android.view.Gravity;
+
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.BriarUiTestComponent;
+import org.briarproject.briar.android.navdrawer.NavDrawerActivity;
+import org.briarproject.briar.android.test.ScreenshotTest;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.action.ViewActions.click;
+import static android.support.test.espresso.assertion.ViewAssertions.matches;
+import static android.support.test.espresso.contrib.DrawerMatchers.isClosed;
+import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static android.support.test.espresso.matcher.ViewMatchers.withId;
+import static android.support.test.espresso.matcher.ViewMatchers.withText;
+
+@RunWith(AndroidJUnit4.class)
+public class SettingsActivityScreenshotTest extends ScreenshotTest {
+
+	@Rule
+	public CleanAccountTestRule<SettingsActivity> testRule =
+			new CleanAccountTestRule<>(SettingsActivity.class);
+
+	@Override
+	protected void inject(BriarUiTestComponent component) {
+		component.inject(this);
+	}
+
+	@Test
+	public void changeTheme() {
+		onView(withText(R.string.settings_button))
+				.check(matches(isDisplayed()));
+
+		screenshot("manual_dark_theme_settings");
+
+		// switch to dark theme
+		onView(withText(R.string.pref_theme_title))
+				.check(matches(isDisplayed()))
+				.perform(click());
+		onView(withText(R.string.pref_theme_dark))
+				.check(matches(isDisplayed()))
+				.perform(click());
+
+		// start main activity
+		Intent i =
+				new Intent(testRule.getActivity(), NavDrawerActivity.class);
+		testRule.getActivity().startActivity(i);
+
+		// close expiry warning
+		onView(withId(R.id.expiryWarningClose))
+				.check(matches(isDisplayed()));
+		onView(withId(R.id.expiryWarningClose))
+				.perform(click());
+
+		// open navigation drawer
+		onView(withId(R.id.drawer_layout))
+				.check(matches(isClosed(Gravity.START)))
+				.perform(DrawerActions.open());
+
+		screenshot("manual_dark_theme_nav_drawer");
+	}
+
+}

briar-android/src/androidTest/java/org/briarproject/briar/android/test/BriarTestRunner.java

@@ -0,0 +1,20 @@
+package org.briarproject.briar.android.test;
+
+import android.app.Application;
+import android.content.Context;
+import android.support.test.runner.AndroidJUnitRunner;
+
+import org.briarproject.briar.android.BriarTestComponentApplication;
+
+public class BriarTestRunner extends AndroidJUnitRunner {
+
+	@Override
+	public Application newApplication(ClassLoader cl, String className,
+			Context context)
+			throws InstantiationException, IllegalAccessException,
+			ClassNotFoundException {
+		return super.newApplication(cl, BriarTestComponentApplication.class.getName(),
+				context);
+	}
+
+}

briar-android/src/androidTest/java/org/briarproject/briar/android/test/ScreenshotTest.java

@@ -0,0 +1,73 @@
+package org.briarproject.briar.android.test;
+
+import android.app.Activity;
+import android.support.test.espresso.intent.rule.IntentsTestRule;
+import android.util.Log;
+
+import org.briarproject.bramble.api.account.AccountManager;
+import org.briarproject.bramble.api.lifecycle.LifecycleManager;
+import org.briarproject.briar.android.BriarTestComponentApplication;
+import org.briarproject.briar.android.BriarUiTestComponent;
+import org.junit.ClassRule;
+
+import javax.inject.Inject;
+
+import tools.fastlane.screengrab.Screengrab;
+import tools.fastlane.screengrab.UiAutomatorScreenshotStrategy;
+import tools.fastlane.screengrab.locale.LocaleTestRule;
+
+import static android.support.test.InstrumentationRegistry.getTargetContext;
+import static tools.fastlane.screengrab.Screengrab.setDefaultScreenshotStrategy;
+
+public abstract class ScreenshotTest {
+
+	@ClassRule
+	public static final LocaleTestRule localeTestRule = new LocaleTestRule();
+
+	protected static final String USERNAME = "Alice";
+	protected static final String PASSWORD = "123456";
+
+	@Inject
+	protected AccountManager accountManager;
+	@Inject
+	protected LifecycleManager lifecycleManager;
+
+	public ScreenshotTest() {
+		super();
+		setDefaultScreenshotStrategy(new UiAutomatorScreenshotStrategy());
+		BriarTestComponentApplication app =
+				(BriarTestComponentApplication) getTargetContext()
+						.getApplicationContext();
+		inject((BriarUiTestComponent) app.getApplicationComponent());
+	}
+
+	protected abstract void inject(BriarUiTestComponent component);
+
+	protected void screenshot(String name) {
+		try {
+			Screengrab.screenshot(name);
+		} catch (RuntimeException e) {
+			if (!e.getMessage().equals("Unable to capture screenshot."))
+				throw e;
+			// The tests should still pass when run from AndroidStudio
+			// without manually granting permissions like fastlane does.
+			Log.w("Screengrab", "Permission to write screenshot is missing.");
+		}
+	}
+
+	protected class CleanAccountTestRule<A extends Activity>
+			extends IntentsTestRule<A> {
+
+		public CleanAccountTestRule(Class<A> activityClass) {
+			super(activityClass);
+		}
+
+		@Override
+		protected void beforeActivityLaunched() {
+			super.beforeActivityLaunched();
+			accountManager.deleteAccount();
+			accountManager.createAccount(USERNAME, PASSWORD);
+		}
+	}
+
+}

briar-android/src/androidTest/java/org/briarproject/briar/android/test/ViewActions.java

@@ -0,0 +1,93 @@
+package org.briarproject.briar.android.test;
+
+import android.app.Activity;
+import android.support.test.espresso.PerformException;
+import android.support.test.espresso.UiController;
+import android.support.test.espresso.ViewAction;
+import android.support.test.runner.lifecycle.ActivityLifecycleMonitor;
+import android.support.test.runner.lifecycle.ActivityLifecycleMonitorRegistry;
+import android.support.test.runner.lifecycle.Stage;
+import android.view.View;
+
+import org.hamcrest.Matcher;
+
+import java.util.concurrent.TimeoutException;
+
+import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static android.support.test.espresso.util.HumanReadables.describe;
+import static android.support.test.espresso.util.TreeIterables.breadthFirstViewTraversal;
+import static java.lang.System.currentTimeMillis;
+import static java.util.concurrent.TimeUnit.SECONDS;
+
+public class ViewActions {
+
+	private final static long TIMEOUT_MS = SECONDS.toMillis(10);
+	private final static long WAIT_MS = 50;
+
+	public static ViewAction waitUntilMatches(Matcher<View> viewMatcher) {
+		return waitUntilMatches(viewMatcher, TIMEOUT_MS);
+	}
+
+	private static ViewAction waitUntilMatches(Matcher<View> viewMatcher,
+			long timeout) {
+		return new CustomViewAction() {
+			@Override
+			protected boolean exitConditionTrue(View view) {
+				for (View child : breadthFirstViewTraversal(view)) {
+					if (viewMatcher.matches(child)) return true;
+				}
+				return false;
+			}
+
+			@Override
+			public String getDescription() {
+				return "Wait for view matcher " + viewMatcher +
+						" to match within " + timeout + " milliseconds.";
+			}
+		};
+	}
+
+	public static ViewAction waitForActivity(Activity activity, Stage stage) {
+		return new CustomViewAction() {
+			@Override
+			protected boolean exitConditionTrue(View view) {
+				ActivityLifecycleMonitor lifecycleMonitor =
+						ActivityLifecycleMonitorRegistry.getInstance();
+				return lifecycleMonitor.getLifecycleStageOf(activity) == stage;
+			}
+
+			@Override
+			public String getDescription() {
+				return "Wait for activity " + activity.getClass().getName() +
+						" to resume within " + TIMEOUT_MS + " milliseconds.";
+			}
+		};
+	}
+
+	private static abstract class CustomViewAction implements ViewAction {
+		@Override
+		public Matcher<View> getConstraints() {
+			return isDisplayed();
+		}
+
+		@Override
+		public void perform(UiController uiController, View view) {
+			uiController.loopMainThreadUntilIdle();
+			long endTime = currentTimeMillis() + TIMEOUT_MS;
+			do {
+				if (exitConditionTrue(view)) return;
+				uiController.loopMainThreadForAtLeast(WAIT_MS);
+			}
+			while (currentTimeMillis() < endTime);
+
+			throw new PerformException.Builder()
+					.withActionDescription(getDescription())
+					.withViewDescription(describe(view))
+					.withCause(new TimeoutException())
+					.build();
+		}
+
+		protected abstract boolean exitConditionTrue(View view);
+	}
+
+}

briar-android/src/debug/res/values/strings.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+	<string name="app_name" translatable="false">Briar Debug</string>
+	<string name="app_package" translatable="false">org.briarproject.briar.android.debug</string>
+</resources>

briar-android/src/main/java/org/briarproject/bramble/account/BriarAccountManager.java

@@ -0,0 +1,33 @@
+package org.briarproject.bramble.account;
+
+import android.app.Application;
+import android.content.SharedPreferences;
+
+import org.briarproject.bramble.api.crypto.CryptoComponent;
+import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.identity.IdentityManager;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.Localizer;
+import org.briarproject.briar.android.util.UiUtils;
+
+import javax.inject.Inject;
+
+class BriarAccountManager extends AndroidAccountManager {
+
+	@Inject
+	BriarAccountManager(DatabaseConfig databaseConfig, CryptoComponent crypto,
+			IdentityManager identityManager, SharedPreferences prefs,
+			Application app) {
+		super(databaseConfig, crypto, identityManager, prefs, app);
+	}
+
+	@Override
+	public void deleteAccount() {
+		synchronized (stateChangeLock) {
+			super.deleteAccount();
+			Localizer.reinitialize();
+			UiUtils.setTheme(appContext,
+					appContext.getString(R.string.pref_theme_light_value));
+		}
+	}
+}

briar-android/src/main/java/org/briarproject/bramble/account/BriarAccountModule.java

@@ -0,0 +1,18 @@
+package org.briarproject.bramble.account;
+
+import org.briarproject.bramble.api.account.AccountManager;
+
+import javax.inject.Singleton;
+
+import dagger.Module;
+import dagger.Provides;
+
+@Module
+public class BriarAccountModule {
+
+	@Provides
+	@Singleton
+	AccountManager provideAccountManager(BriarAccountManager accountManager) {
+		return accountManager;
+	}
+}

briar-android/src/main/java/org/briarproject/briar/android/AndroidComponent.java

@@ -1,16 +1,14 @@
 package org.briarproject.briar.android;
 
-import android.content.SharedPreferences;
-
 import org.briarproject.bramble.BrambleAndroidModule;
 import org.briarproject.bramble.BrambleCoreEagerSingletons;
 import org.briarproject.bramble.BrambleCoreModule;
+import org.briarproject.bramble.account.BriarAccountModule;
+import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.contact.ContactExchangeTask;
 import org.briarproject.bramble.api.contact.ContactManager;
-import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.crypto.CryptoExecutor;
 import org.briarproject.bramble.api.crypto.PasswordStrengthEstimator;
-import org.briarproject.bramble.api.db.DatabaseConfig;
 import org.briarproject.bramble.api.db.DatabaseExecutor;
 import org.briarproject.bramble.api.event.EventBus;
 import org.briarproject.bramble.api.identity.IdentityManager;
@@ -62,6 +60,7 @@ import dagger.Component;
 		BrambleCoreModule.class,
 		BriarCoreModule.class,
 		BrambleAndroidModule.class,
+		BriarAccountModule.class,
 		AppModule.class
 })
 public interface AndroidComponent
@@ -73,10 +72,6 @@ public interface AndroidComponent
 
 	PasswordStrengthEstimator passwordStrengthIndicator();
 
-	CryptoComponent cryptoComponent();
-
-	DatabaseConfig databaseConfig();
-
 	@DatabaseExecutor
 	Executor databaseExecutor();
 
@@ -92,8 +87,6 @@ public interface AndroidComponent
 
 	AndroidNotificationManager androidNotificationManager();
 
-	SharedPreferences sharedPreferences();
-
 	ScreenFilterMonitor screenFilterMonitor();
 
 	ConnectionRegistry connectionRegistry();
@@ -151,6 +144,8 @@ public interface AndroidComponent
 	@IoExecutor
 	Executor ioExecutor();
 
+	AccountManager accountManager();
+
 	void inject(SignInReminderReceiver briarService);
 
 	void inject(BriarService briarService);

briar-android/src/main/java/org/briarproject/briar/android/AndroidDatabaseConfig.java

@@ -1,99 +1,30 @@
 package org.briarproject.briar.android;
 
-import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.db.DatabaseConfig;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 import java.io.File;
-import java.util.logging.Logger;
-
-import javax.annotation.Nullable;
-
-import static java.util.logging.Level.INFO;
 
 @NotNullByDefault
 class AndroidDatabaseConfig implements DatabaseConfig {
 
-	private static final Logger LOG =
-			Logger.getLogger(AndroidDatabaseConfig.class.getName());
-
 	private final File dbDir, keyDir;
 
-	@Nullable
-	private volatile SecretKey key = null;
-	@Nullable
-	private volatile String nickname = null;
-
 	AndroidDatabaseConfig(File dbDir, File keyDir) {
 		this.dbDir = dbDir;
 		this.keyDir = keyDir;
 	}
 
-	@Override
-	public boolean databaseExists() {
-		// FIXME should not run on UiThread #620
-		if (!dbDir.isDirectory()) {
-			if (LOG.isLoggable(INFO))
-				LOG.info(dbDir.getAbsolutePath() + " is not a directory");
-			return false;
-		}
-		File[] files = dbDir.listFiles();
-		if (LOG.isLoggable(INFO)) {
-			if (files == null) {
-				LOG.info("Could not list files in " + dbDir.getAbsolutePath());
-			} else {
-				LOG.info("Files in " + dbDir.getAbsolutePath() + ":");
-				for (File f : files) LOG.info(f.getName());
-			}
-			LOG.info("Database exists: " + (files != null && files.length > 0));
-		}
-		return files != null && files.length > 0;
-	}
-
 	@Override
 	public File getDatabaseDirectory() {
-		if (LOG.isLoggable(INFO))
-			LOG.info("Database directory: " + dbDir.getAbsolutePath());
 		return dbDir;
 	}
 
 	@Override
 	public File getDatabaseKeyDirectory() {
-		if (LOG.isLoggable(INFO))
-			LOG.info("Database key directory: " + keyDir.getAbsolutePath());
 		return keyDir;
 	}
 
-	@Override
-	public void setEncryptionKey(SecretKey key) {
-		LOG.info("Setting database key");
-		this.key = key;
-	}
-
-	@Override
-	public void setLocalAuthorName(String nickname) {
-		LOG.info("Setting local author name");
-		this.nickname = nickname;
-	}
-
-	@Override
-	@Nullable
-	public String getLocalAuthorName() {
-		String nickname = this.nickname;
-		if (LOG.isLoggable(INFO))
-			LOG.info("Local author name has been set: " + (nickname != null));
-		return nickname;
-	}
-
-	@Override
-	@Nullable
-	public SecretKey getEncryptionKey() {
-		SecretKey key = this.key;
-		if (LOG.isLoggable(INFO))
-			LOG.info("Database key has been set: " + (key != null));
-		return key;
-	}
-
 	@Override
 	public long getMaxSize() {
 		return Long.MAX_VALUE;

briar-android/src/main/java/org/briarproject/briar/android/AppModule.java

@@ -11,9 +11,8 @@ import org.briarproject.bramble.api.db.DatabaseConfig;
 import org.briarproject.bramble.api.event.EventBus;
 import org.briarproject.bramble.api.lifecycle.IoExecutor;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager;
-import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.bramble.api.network.NetworkManager;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.bramble.api.plugin.BackoffFactory;
 import org.briarproject.bramble.api.plugin.PluginConfig;
 import org.briarproject.bramble.api.plugin.duplex.DuplexPluginFactory;
@@ -86,11 +85,7 @@ public class AppModule {
 		File dbDir = app.getApplicationContext().getDir("db", MODE_PRIVATE);
 		File keyDir = app.getApplicationContext().getDir("key", MODE_PRIVATE);
 		StrictMode.setThreadPolicy(tp);
-		@MethodsNotNullByDefault
-		@ParametersNotNullByDefault
-		DatabaseConfig databaseConfig =
-				new AndroidDatabaseConfig(dbDir, keyDir);
-		return databaseConfig;
+		return new AndroidDatabaseConfig(dbDir, keyDir);
 	}
 
 	@Provides
@@ -98,17 +93,18 @@ public class AppModule {
 			@Scheduler ScheduledExecutorService scheduler,
 			AndroidExecutor androidExecutor, SecureRandom random,
 			SocketFactory torSocketFactory, BackoffFactory backoffFactory,
-			Application app, LocationUtils locationUtils, EventBus eventBus,
+			Application app, NetworkManager networkManager,
+			LocationUtils locationUtils, EventBus eventBus,
 			CircumventionProvider circumventionProvider, Clock clock) {
 		Context appContext = app.getApplicationContext();
 		DuplexPluginFactory bluetooth =
 				new AndroidBluetoothPluginFactory(ioExecutor, androidExecutor,
 						appContext, random, eventBus, backoffFactory);
 		DuplexPluginFactory tor = new TorPluginFactory(ioExecutor, scheduler,
-				appContext, locationUtils, eventBus, torSocketFactory,
-				backoffFactory, circumventionProvider, clock);
+				appContext, networkManager, locationUtils, eventBus,
+				torSocketFactory, backoffFactory, circumventionProvider, clock);
 		DuplexPluginFactory lan = new AndroidLanTcpPluginFactory(ioExecutor,
-				scheduler, backoffFactory, appContext);
+				eventBus, backoffFactory, appContext);
 		Collection<DuplexPluginFactory> duplex = asList(bluetooth, tor, lan);
 		@NotNullByDefault
 		PluginConfig pluginConfig = new PluginConfig() {

briar-android/src/main/java/org/briarproject/briar/android/BriarApplicationImpl.java

@@ -109,15 +109,20 @@ public class BriarApplicationImpl extends Application
 
 		LOG.info("Created");
 
-		applicationComponent = DaggerAndroidComponent.builder()
+		applicationComponent = createApplicationComponent();
+	}
+
+	protected AndroidComponent createApplicationComponent() {
+		AndroidComponent androidComponent = DaggerAndroidComponent.builder()
 				.appModule(new AppModule(this))
 				.build();
 
 		// We need to load the eager singletons directly after making the
 		// dependency graphs
-		BrambleCoreModule.initEagerSingletons(applicationComponent);
-		BriarCoreModule.initEagerSingletons(applicationComponent);
-		AndroidEagerSingletons.initEagerSingletons(applicationComponent);
+		BrambleCoreModule.initEagerSingletons(androidComponent);
+		BriarCoreModule.initEagerSingletons(androidComponent);
+		AndroidEagerSingletons.initEagerSingletons(androidComponent);
+		return androidComponent;
 	}
 
 	@Override

briar-android/src/main/java/org/briarproject/briar/android/BriarService.java

@@ -17,7 +17,8 @@ import android.os.IBinder;
 import android.support.v4.app.NotificationCompat;
 import android.support.v4.content.ContextCompat;
 
-import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.account.AccountManager;
+import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager.StartResult;
 import org.briarproject.bramble.api.system.AndroidExecutor;
@@ -74,12 +75,13 @@ public class BriarService extends Service {
 	private BroadcastReceiver receiver = null;
 
 	@Inject
-	protected DatabaseConfig databaseConfig;
+	AccountManager accountManager;
+
 	// Fields that are accessed from background threads must be volatile
 	@Inject
-	protected volatile LifecycleManager lifecycleManager;
+	volatile LifecycleManager lifecycleManager;
 	@Inject
-	protected volatile AndroidExecutor androidExecutor;
+	volatile AndroidExecutor androidExecutor;
 	private volatile boolean started = false;
 
 	@Override
@@ -95,7 +97,8 @@ public class BriarService extends Service {
 			stopSelf();
 			return;
 		}
-		if (databaseConfig.getEncryptionKey() == null) {
+		SecretKey dbKey = accountManager.getDatabaseKey();
+		if (dbKey == null) {
 			LOG.info("No database key");
 			stopSelf();
 			return;
@@ -138,8 +141,7 @@ public class BriarService extends Service {
 		startForeground(ONGOING_NOTIFICATION_ID, b.build());
 		// Start the services in a background thread
 		new Thread(() -> {
-			String nickname = databaseConfig.getLocalAuthorName();
-			StartResult result = lifecycleManager.startServices(nickname);
+			StartResult result = lifecycleManager.startServices(dbKey);
 			if (result == SUCCESS) {
 				started = true;
 			} else if (result == ALREADY_RUNNING) {

briar-android/src/main/java/org/briarproject/briar/android/activity/ActivityModule.java

@@ -4,8 +4,6 @@ import android.app.Activity;
 
 import org.briarproject.briar.android.controller.BriarController;
 import org.briarproject.briar.android.controller.BriarControllerImpl;
-import org.briarproject.briar.android.controller.ConfigController;
-import org.briarproject.briar.android.controller.ConfigControllerImpl;
 import org.briarproject.briar.android.controller.DbController;
 import org.briarproject.briar.android.controller.DbControllerImpl;
 import org.briarproject.briar.android.login.PasswordController;
@@ -48,13 +46,6 @@ public class ActivityModule {
 		return setupController;
 	}
 
-	@ActivityScope
-	@Provides
-	ConfigController provideConfigController(
-			ConfigControllerImpl configController) {
-		return configController;
-	}
-
 	@ActivityScope
 	@Provides
 	PasswordController providePasswordController(

briar-android/src/main/java/org/briarproject/briar/android/activity/BriarActivity.java

@@ -61,7 +61,7 @@ public abstract class BriarActivity extends BaseActivity {
 	@Override
 	public void onStart() {
 		super.onStart();
-		if (!briarController.hasEncryptionKey() && !isFinishing()) {
+		if (!briarController.accountSignedIn() && !isFinishing()) {
 			Intent i = new Intent(this, PasswordActivity.class);
 			startActivityForResult(i, REQUEST_PASSWORD);
 		} else if (SDK_INT >= 23) {
@@ -138,7 +138,7 @@ public abstract class BriarActivity extends BaseActivity {
 	}
 
 	protected void signOut(boolean removeFromRecentApps) {
-		if (briarController.hasEncryptionKey()) {
+		if (briarController.accountSignedIn()) {
 			// Don't use UiResultHandler because we want the result even if
 			// this activity has been destroyed
 			briarController.signOut(result -> runOnUiThread(

briar-android/src/main/java/org/briarproject/briar/android/blog/BlogFragment.java

@@ -335,7 +335,7 @@ public class BlogFragment extends BaseFragment
 			View.OnClickListener onClick = v -> list.smoothScrollToPosition(0);
 			snackbar.setActionTextColor(ContextCompat
 					.getColor(getContext(),
-							R.color.briar_button_positive));
+							R.color.briar_button_text_positive));
 			snackbar.setAction(R.string.blogs_blog_post_scroll_to, onClick);
 		}
 		snackbar.show();

briar-android/src/main/java/org/briarproject/briar/android/blog/FeedFragment.java

@@ -250,7 +250,7 @@ public class FeedFragment extends BaseFragment implements
 			OnClickListener onClick = v -> list.smoothScrollToPosition(0);
 			s.setActionTextColor(ContextCompat
 					.getColor(getContext(),
-							R.color.briar_button_positive));
+							R.color.briar_button_text_positive));
 			s.setAction(R.string.blogs_blog_post_scroll_to, onClick);
 		}
 		s.show();

briar-android/src/main/java/org/briarproject/briar/android/controller/BriarController.java

@@ -6,7 +6,7 @@ public interface BriarController extends ActivityLifecycleController {
 
 	void startAndBindService();
 
-	boolean hasEncryptionKey();
+	boolean accountSignedIn();
 
 	/**
 	 * Returns true via the handler when the app has dozed

briar-android/src/main/java/org/briarproject/briar/android/controller/BriarControllerImpl.java

@@ -5,7 +5,7 @@ import android.content.Intent;
 import android.os.IBinder;
 import android.support.annotation.CallSuper;
 
-import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.db.DatabaseExecutor;
 import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.bramble.api.settings.Settings;
@@ -33,8 +33,7 @@ public class BriarControllerImpl implements BriarController {
 	public static final String DOZE_ASK_AGAIN = "dozeAskAgain";
 
 	private final BriarServiceConnection serviceConnection;
-	private final DatabaseConfig databaseConfig;
-	@DatabaseExecutor
+	private final AccountManager accountManager;
 	private final Executor databaseExecutor;
 	private final SettingsManager settingsManager;
 	private final DozeWatchdog dozeWatchdog;
@@ -44,12 +43,12 @@ public class BriarControllerImpl implements BriarController {
 
 	@Inject
 	BriarControllerImpl(BriarServiceConnection serviceConnection,
-			DatabaseConfig databaseConfig,
+			AccountManager accountManager,
 			@DatabaseExecutor Executor databaseExecutor,
 			SettingsManager settingsManager, DozeWatchdog dozeWatchdog,
 			Activity activity) {
 		this.serviceConnection = serviceConnection;
-		this.databaseConfig = databaseConfig;
+		this.accountManager = accountManager;
 		this.databaseExecutor = databaseExecutor;
 		this.settingsManager = settingsManager;
 		this.dozeWatchdog = dozeWatchdog;
@@ -59,7 +58,7 @@ public class BriarControllerImpl implements BriarController {
 	@Override
 	@CallSuper
 	public void onActivityCreate(Activity activity) {
-		if (databaseConfig.getEncryptionKey() != null) startAndBindService();
+		if (accountManager.hasDatabaseKey()) startAndBindService();
 	}
 
 	@Override
@@ -84,8 +83,8 @@ public class BriarControllerImpl implements BriarController {
 	}
 
 	@Override
-	public boolean hasEncryptionKey() {
-		return databaseConfig.getEncryptionKey() != null;
+	public boolean accountSignedIn() {
+		return accountManager.hasDatabaseKey();
 	}
 
 	@Override

briar-android/src/main/java/org/briarproject/briar/android/controller/ConfigController.java

@@ -1,23 +0,0 @@
-package org.briarproject.briar.android.controller;
-
-import android.content.Context;
-
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-
-import javax.annotation.Nullable;
-
-@NotNullByDefault
-public interface ConfigController {
-
-	@Nullable
-	String getEncryptedDatabaseKey();
-
-	boolean storeEncryptedDatabaseKey(String hex);
-
-	void deleteAccount(Context ctx);
-
-	boolean accountExists();
-
-	boolean accountSignedIn();
-
-}

briar-android/src/main/java/org/briarproject/briar/android/controller/ConfigControllerImpl.java

@@ -1,171 +0,0 @@
-package org.briarproject.briar.android.controller;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.support.v7.preference.PreferenceManager;
-
-import org.briarproject.bramble.api.db.DatabaseConfig;
-import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.util.AndroidUtils;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.util.logging.Logger;
-
-import javax.annotation.Nullable;
-import javax.inject.Inject;
-
-import static java.util.logging.Level.WARNING;
-import static org.briarproject.bramble.util.LogUtils.logException;
-
-@NotNullByDefault
-public class ConfigControllerImpl implements ConfigController {
-
-	private static final Logger LOG =
-			Logger.getLogger(ConfigControllerImpl.class.getName());
-
-	private static final String PREF_DB_KEY = "key";
-	private static final String DB_KEY_FILENAME = "db.key";
-	private static final String DB_KEY_BACKUP_FILENAME = "db.key.bak";
-
-	private final SharedPreferences briarPrefs;
-	private final File dbKeyFile, dbKeyBackupFile;
-	protected final DatabaseConfig databaseConfig;
-
-	@Inject
-	public ConfigControllerImpl(SharedPreferences briarPrefs,
-			DatabaseConfig databaseConfig) {
-		this.briarPrefs = briarPrefs;
-		this.databaseConfig = databaseConfig;
-		File keyDir = databaseConfig.getDatabaseKeyDirectory();
-		dbKeyFile = new File(keyDir, DB_KEY_FILENAME);
-		dbKeyBackupFile = new File(keyDir, DB_KEY_BACKUP_FILENAME);
-	}
-
-	@Override
-	@Nullable
-	public String getEncryptedDatabaseKey() {
-		String key = getDatabaseKeyFromPreferences();
-		if (key == null) key = getDatabaseKeyFromFile();
-		else migrateDatabaseKeyToFile(key);
-		return key;
-	}
-
-	@Nullable
-	private String getDatabaseKeyFromPreferences() {
-		String key = briarPrefs.getString(PREF_DB_KEY, null);
-		if (key == null) LOG.info("No database key in preferences");
-		else LOG.info("Found database key in preferences");
-		return key;
-	}
-
-	@Nullable
-	private String getDatabaseKeyFromFile() {
-		String key = readDbKeyFromFile(dbKeyFile);
-		if (key == null) {
-			LOG.info("No database key in primary file");
-			key = readDbKeyFromFile(dbKeyBackupFile);
-			if (key == null) LOG.info("No database key in backup file");
-			else LOG.warning("Found database key in backup file");
-		} else {
-			LOG.info("Found database key in primary file");
-		}
-		return key;
-	}
-
-	@Nullable
-	private String readDbKeyFromFile(File f) {
-		if (!f.exists()) {
-			LOG.info("Key file does not exist");
-			return null;
-		}
-		try {
-			BufferedReader reader = new BufferedReader(new InputStreamReader(
-					new FileInputStream(f), "UTF-8"));
-			String key = reader.readLine();
-			reader.close();
-			return key;
-		} catch (IOException e) {
-			logException(LOG, WARNING, e);
-			return null;
-		}
-	}
-
-	private void migrateDatabaseKeyToFile(String key) {
-		if (storeEncryptedDatabaseKey(key)) {
-			if (briarPrefs.edit().remove(PREF_DB_KEY).commit())
-				LOG.info("Database key migrated to file");
-			else LOG.warning("Database key not removed from preferences");
-		} else {
-			LOG.warning("Database key not migrated to file");
-		}
-	}
-
-	@Override
-	public boolean storeEncryptedDatabaseKey(String hex) {
-		LOG.info("Storing database key in file");
-		// Create the directory if necessary
-		if (databaseConfig.getDatabaseKeyDirectory().mkdirs())
-			LOG.info("Created database key directory");
-		// If only the backup file exists, rename it so we don't overwrite it
-		if (dbKeyBackupFile.exists() && !dbKeyFile.exists()) {
-			if (dbKeyBackupFile.renameTo(dbKeyFile))
-				LOG.info("Renamed old backup");
-			else LOG.warning("Failed to rename old backup");
-		}
-		try {
-			// Write to the backup file
-			writeDbKeyToFile(hex, dbKeyBackupFile);
-			LOG.info("Stored database key in backup file");
-			// Delete the old primary file, if it exists
-			if (dbKeyFile.exists()) {
-				if (dbKeyFile.delete()) LOG.info("Deleted primary file");
-				else LOG.warning("Failed to delete primary file");
-			}
-			// The backup file becomes the new primary
-			if (dbKeyBackupFile.renameTo(dbKeyFile)) {
-				LOG.info("Renamed backup file to primary");
-			} else {
-				LOG.warning("Failed to rename backup file to primary");
-				return false; // Don't overwrite our only copy
-			}
-			// Write a second copy to the backup file
-			writeDbKeyToFile(hex, dbKeyBackupFile);
-			LOG.info("Stored second copy of database key in backup file");
-			return true;
-		} catch (IOException e) {
-			logException(LOG, WARNING, e);
-			return false;
-		}
-	}
-
-	private void writeDbKeyToFile(String key, File f) throws IOException {
-		FileOutputStream out = new FileOutputStream(f);
-		out.write(key.getBytes("UTF-8"));
-		out.flush();
-		out.close();
-	}
-
-	@Override
-	public void deleteAccount(Context ctx) {
-		LOG.info("Deleting account");
-		SharedPreferences defaultPrefs =
-				PreferenceManager.getDefaultSharedPreferences(ctx);
-		AndroidUtils.deleteAppData(ctx, briarPrefs, defaultPrefs);
-	}
-
-	@Override
-	public boolean accountExists() {
-		String hex = getEncryptedDatabaseKey();
-		return hex != null && databaseConfig.databaseExists();
-	}
-
-	@Override
-	public boolean accountSignedIn() {
-		return databaseConfig.getEncryptionKey() != null;
-	}
-}

briar-android/src/main/java/org/briarproject/briar/android/forum/ForumListFragment.java

@@ -103,7 +103,7 @@ public class ForumListFragment extends BaseEventFragment implements
 		snackbar.getView().setBackgroundResource(R.color.briar_primary);
 		snackbar.setAction(R.string.show, this);
 		snackbar.setActionTextColor(ContextCompat
-				.getColor(getContext(), R.color.briar_button_positive));
+				.getColor(getContext(), R.color.briar_button_text_positive));
 
 		return contentView;
 	}

briar-android/src/main/java/org/briarproject/briar/android/login/PasswordActivity.java

@@ -13,8 +13,8 @@ import android.widget.Button;
 import android.widget.EditText;
 import android.widget.ProgressBar;
 
+import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.briar.R;
-import org.briarproject.briar.android.Localizer;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BaseActivity;
 import org.briarproject.briar.android.controller.BriarController;
@@ -33,6 +33,9 @@ import static org.briarproject.briar.api.android.AndroidNotificationManager.REMI
 
 public class PasswordActivity extends BaseActivity {
 
+	@Inject
+	AccountManager accountManager;
+
 	@Inject
 	PasswordController passwordController;
 
@@ -50,7 +53,8 @@ public class PasswordActivity extends BaseActivity {
 		// fade-in after splash screen instead of default animation
 		overridePendingTransition(R.anim.fade_in, R.anim.fade_out);
 
-		if (!passwordController.accountExists()) {
+		if (!accountManager.accountExists()) {
+			// TODO: Finish instead of deleting account?
 			deleteAccount();
 			return;
 		}
@@ -87,7 +91,7 @@ public class PasswordActivity extends BaseActivity {
 	public void onStart() {
 		super.onStart();
 		// If the user has already signed in, clean up this instance
-		if (briarController.hasEncryptionKey()) {
+		if (briarController.accountSignedIn()) {
 			setResult(RESULT_OK);
 			finish();
 		} else {
@@ -112,9 +116,7 @@ public class PasswordActivity extends BaseActivity {
 	}
 
 	private void deleteAccount() {
-		passwordController.deleteAccount(this);
-		Localizer.reinitialize();
-		UiUtils.setTheme(this, getString(R.string.pref_theme_light_value));
+		accountManager.deleteAccount();
 		setResult(RESULT_CANCELED);
 		Intent i = new Intent(this, SetupActivity.class);
 		i.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TASK);

briar-android/src/main/java/org/briarproject/briar/android/login/PasswordController.java

@@ -1,18 +1,17 @@
 package org.briarproject.briar.android.login;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.briar.android.controller.ConfigController;
 import org.briarproject.briar.android.controller.handler.ResultHandler;
 
 @NotNullByDefault
-public interface PasswordController extends ConfigController {
+public interface PasswordController {
 
 	float estimatePasswordStrength(String password);
 
 	void validatePassword(String password,
 			ResultHandler<Boolean> resultHandler);
 
-	void changePassword(String password, String newPassword,
+	void changePassword(String oldPassword, String newPassword,
 			ResultHandler<Boolean> resultHandler);
 
 }

briar-android/src/main/java/org/briarproject/briar/android/login/PasswordControllerImpl.java

@@ -1,44 +1,28 @@
 package org.briarproject.briar.android.login;
 
-import android.content.SharedPreferences;
-
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-import org.briarproject.bramble.api.crypto.CryptoExecutor;
+import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.crypto.PasswordStrengthEstimator;
-import org.briarproject.bramble.api.crypto.SecretKey;
-import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.lifecycle.IoExecutor;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.briarproject.bramble.util.StringUtils;
-import org.briarproject.briar.android.controller.ConfigControllerImpl;
 import org.briarproject.briar.android.controller.handler.ResultHandler;
 
 import java.util.concurrent.Executor;
-import java.util.logging.Logger;
 
 import javax.inject.Inject;
 
-import static org.briarproject.bramble.util.LogUtils.logDuration;
-import static org.briarproject.bramble.util.LogUtils.now;
-
 @NotNullByDefault
-public class PasswordControllerImpl extends ConfigControllerImpl
-		implements PasswordController {
+public class PasswordControllerImpl implements PasswordController {
 
-	private static final Logger LOG =
-			Logger.getLogger(PasswordControllerImpl.class.getName());
-
-	protected final Executor cryptoExecutor;
-	protected final CryptoComponent crypto;
+	protected final AccountManager accountManager;
+	protected final Executor ioExecutor;
 	private final PasswordStrengthEstimator strengthEstimator;
 
 	@Inject
-	PasswordControllerImpl(SharedPreferences briarPrefs,
-			DatabaseConfig databaseConfig,
-			@CryptoExecutor Executor cryptoExecutor, CryptoComponent crypto,
+	PasswordControllerImpl(AccountManager accountManager,
+			@IoExecutor Executor ioExecutor,
 			PasswordStrengthEstimator strengthEstimator) {
-		super(briarPrefs, databaseConfig);
-		this.cryptoExecutor = cryptoExecutor;
-		this.crypto = crypto;
+		this.accountManager = accountManager;
+		this.ioExecutor = ioExecutor;
 		this.strengthEstimator = strengthEstimator;
 	}
 
@@ -50,46 +34,17 @@ public class PasswordControllerImpl extends ConfigControllerImpl
 	@Override
 	public void validatePassword(String password,
 			ResultHandler<Boolean> resultHandler) {
-		byte[] encrypted = getEncryptedKey();
-		cryptoExecutor.execute(() -> {
-			byte[] key = crypto.decryptWithPassword(encrypted, password);
-			if (key == null) {
-				resultHandler.onResult(false);
-			} else {
-				databaseConfig.setEncryptionKey(new SecretKey(key));
-				resultHandler.onResult(true);
-			}
-		});
+		ioExecutor.execute(() ->
+				resultHandler.onResult(accountManager.signIn(password)));
 	}
 
 	@Override
-	public void changePassword(String password, String newPassword,
+	public void changePassword(String oldPassword, String newPassword,
 			ResultHandler<Boolean> resultHandler) {
-		byte[] encrypted = getEncryptedKey();
-		cryptoExecutor.execute(() -> {
-			byte[] key = crypto.decryptWithPassword(encrypted, password);
-			if (key == null) {
-				resultHandler.onResult(false);
-			} else {
-				String hex =
-						encryptDatabaseKey(new SecretKey(key), newPassword);
-				resultHandler.onResult(storeEncryptedDatabaseKey(hex));
-			}
+		ioExecutor.execute(() -> {
+			boolean changed =
+					accountManager.changePassword(oldPassword, newPassword);
+			resultHandler.onResult(changed);
 		});
 	}
-
-	private byte[] getEncryptedKey() {
-		String hex = getEncryptedDatabaseKey();
-		if (hex == null)
-			throw new IllegalStateException("Encrypted database key is null");
-		return StringUtils.fromHexString(hex);
-	}
-
-	@CryptoExecutor
-	String encryptDatabaseKey(SecretKey key, String password) {
-		long start = now();
-		byte[] encrypted = crypto.encryptWithPassword(key.getBytes(), password);
-		logDuration(LOG, "Key derivation", start);
-		return StringUtils.toHexString(encrypted);
-	}
 }

briar-android/src/main/java/org/briarproject/briar/android/login/SetupActivity.java

@@ -4,6 +4,7 @@ import android.annotation.TargetApi;
 import android.content.Intent;
 import android.os.Bundle;
 
+import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
 import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.R;
@@ -25,6 +26,9 @@ public class SetupActivity extends BaseActivity
 	private static final String STATE_KEY_AUTHOR_NAME = "authorName";
 	private static final String STATE_KEY_PASSWORD = "password";
 
+	@Inject
+	AccountManager accountManager;
+
 	@Inject
 	SetupController setupController;
 
@@ -39,8 +43,7 @@ public class SetupActivity extends BaseActivity
 		setContentView(R.layout.activity_fragment_container);
 
 		if (state == null) {
-			if (setupController.accountExists())
-				throw new AssertionError();
+			if (accountManager.accountExists()) throw new AssertionError();
 			showInitialFragment(AuthorNameFragment.newInstance());
 		} else {
 			authorName = state.getString(STATE_KEY_AUTHOR_NAME);

briar-android/src/main/java/org/briarproject/briar/android/login/SetupControllerImpl.java

@@ -1,13 +1,10 @@
 package org.briarproject.briar.android.login;
 
-import android.content.SharedPreferences;
 import android.support.annotation.Nullable;
 
-import org.briarproject.bramble.api.crypto.CryptoComponent;
-import org.briarproject.bramble.api.crypto.CryptoExecutor;
+import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.crypto.PasswordStrengthEstimator;
-import org.briarproject.bramble.api.crypto.SecretKey;
-import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.lifecycle.IoExecutor;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.briar.android.controller.handler.ResultHandler;
 import org.briarproject.briar.android.controller.handler.UiResultHandler;
@@ -28,12 +25,10 @@ public class SetupControllerImpl extends PasswordControllerImpl
 	private volatile SetupActivity setupActivity;
 
 	@Inject
-	SetupControllerImpl(SharedPreferences briarPrefs,
-			DatabaseConfig databaseConfig,
-			@CryptoExecutor Executor cryptoExecutor, CryptoComponent crypto,
+	SetupControllerImpl(AccountManager accountManager,
+			@IoExecutor Executor ioExecutor,
 			PasswordStrengthEstimator strengthEstimator) {
-		super(briarPrefs, databaseConfig, cryptoExecutor, crypto,
-				strengthEstimator);
+		super(accountManager, ioExecutor, strengthEstimator);
 	}
 
 	@Override
@@ -80,10 +75,11 @@ public class SetupControllerImpl extends PasswordControllerImpl
 	@Override
 	public void createAccount() {
 		SetupActivity setupActivity = this.setupActivity;
-		UiResultHandler<Void> resultHandler =
-				new UiResultHandler<Void>(setupActivity) {
+		UiResultHandler<Boolean> resultHandler =
+				new UiResultHandler<Boolean>(setupActivity) {
 					@Override
-					public void onResultUi(Void result) {
+					public void onResultUi(Boolean result) {
+						// TODO: Show an error if result is false
 						if (setupActivity == null)
 							throw new IllegalStateException();
 						setupActivity.showApp();
@@ -93,22 +89,17 @@ public class SetupControllerImpl extends PasswordControllerImpl
 	}
 
 	// Package access for testing
-	void createAccount(ResultHandler<Void> resultHandler) {
+	void createAccount(ResultHandler<Boolean> resultHandler) {
 		SetupActivity setupActivity = this.setupActivity;
 		if (setupActivity == null) throw new IllegalStateException();
 		String authorName = setupActivity.getAuthorName();
 		if (authorName == null) throw new IllegalStateException();
 		String password = setupActivity.getPassword();
 		if (password == null) throw new IllegalStateException();
-		cryptoExecutor.execute(() -> {
+		ioExecutor.execute(() -> {
 			LOG.info("Creating account");
-			databaseConfig.setLocalAuthorName(authorName);
-			SecretKey key = crypto.generateSecretKey();
-			databaseConfig.setEncryptionKey(key);
-			String hex = encryptDatabaseKey(key, password);
-			storeEncryptedDatabaseKey(hex);
-			resultHandler.onResult(null);
+			resultHandler.onResult(accountManager.createAccount(authorName,
+					password));
 		});
 	}
-
 }

briar-android/src/main/java/org/briarproject/briar/android/login/SignInReminderReceiver.java

@@ -10,7 +10,7 @@ import android.content.SharedPreferences;
 import android.support.v4.app.NotificationCompat;
 import android.support.v4.content.ContextCompat;
 
-import org.briarproject.bramble.api.db.DatabaseConfig;
+import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.AndroidComponent;
 import org.briarproject.briar.android.BriarApplication;
@@ -37,7 +37,7 @@ public class SignInReminderReceiver extends BroadcastReceiver {
 	public static final String DISMISS_REMINDER = "dismissReminder";
 
 	@Inject
-	DatabaseConfig databaseConfig;
+	AccountManager accountManager;
 
 	@Override
 	public void onReceive(Context ctx, Intent intent) {
@@ -51,7 +51,8 @@ public class SignInReminderReceiver extends BroadcastReceiver {
 		if (action == null) return;
 		if (action.equals(ACTION_BOOT_COMPLETED) ||
 				action.equals(ACTION_MY_PACKAGE_REPLACED)) {
-			if (databaseConfig.databaseExists()) {
+			if (accountManager.accountExists() &&
+					!accountManager.hasDatabaseKey()) {
 				SharedPreferences prefs = app.getDefaultSharedPreferences();
 				if (prefs.getBoolean(NOTIFY_SIGN_IN, true)) {
 					showSignInNotification(ctx);

briar-android/src/main/java/org/briarproject/briar/android/panic/PanicResponderActivity.java

@@ -7,10 +7,10 @@ import android.os.Build;
 import android.os.Bundle;
 import android.support.v7.preference.PreferenceManager;
 
+import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.system.AndroidExecutor;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BriarActivity;
-import org.briarproject.briar.android.controller.ConfigController;
 import org.iilab.IilabEngineeringRSA2048Pin;
 
 import java.util.logging.Logger;
@@ -33,7 +33,7 @@ public class PanicResponderActivity extends BriarActivity {
 			Logger.getLogger(PanicResponderActivity.class.getName());
 
 	@Inject
-	protected ConfigController configController;
+	protected AccountManager accountManager;
 	@Inject
 	protected AndroidExecutor androidExecutor;
 
@@ -94,7 +94,7 @@ public class PanicResponderActivity extends BriarActivity {
 
 	private void deleteAllData() {
 		androidExecutor.runOnBackgroundThread(() -> {
-			configController.deleteAccount(PanicResponderActivity.this);
+			accountManager.deleteAccount();
 			// TODO somehow delete/shred the database more thoroughly
 			PanicResponder.deleteAllAppData(PanicResponderActivity.this);
 

briar-android/src/main/java/org/briarproject/briar/android/privategroup/list/GroupListFragment.java

@@ -77,7 +77,7 @@ public class GroupListFragment extends BaseFragment implements
 		snackbar.getView().setBackgroundResource(R.color.briar_primary);
 		snackbar.setAction(R.string.show, this);
 		snackbar.setActionTextColor(ContextCompat
-				.getColor(getContext(), R.color.briar_button_positive));
+				.getColor(getContext(), R.color.briar_button_text_positive));
 
 		return v;
 	}

briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsFragment.java

@@ -43,6 +43,7 @@ import org.briarproject.briar.android.util.UiUtils;
 import org.briarproject.briar.android.util.UserFeedback;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
 import java.util.logging.Logger;
@@ -67,14 +68,19 @@ import static android.provider.Settings.EXTRA_CHANNEL_ID;
 import static android.provider.Settings.System.DEFAULT_NOTIFICATION_URI;
 import static android.support.v4.view.ViewCompat.LAYOUT_DIRECTION_LTR;
 import static android.widget.Toast.LENGTH_SHORT;
+import static java.util.Arrays.asList;
 import static java.util.logging.Level.INFO;
 import static java.util.logging.Level.WARNING;
 import static org.briarproject.bramble.api.plugin.BluetoothConstants.PREF_BT_ENABLE;
+import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_DISABLE_BLOCKED;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK;
 import static org.briarproject.bramble.api.plugin.TorConstants.PREF_TOR_NETWORK_ALWAYS;
+import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BLOCKED;
+import static org.briarproject.bramble.plugin.tor.CircumventionProvider.BRIDGES;
 import static org.briarproject.bramble.util.LogUtils.logDuration;
 import static org.briarproject.bramble.util.LogUtils.logException;
 import static org.briarproject.bramble.util.LogUtils.now;
+import static org.briarproject.bramble.util.StringUtils.join;
 import static org.briarproject.briar.android.TestingConstants.FEATURE_FLAG_DARK_THEME;
 import static org.briarproject.briar.android.TestingConstants.FEATURE_FLAG_SIGN_IN_REMINDER;
 import static org.briarproject.briar.android.TestingConstants.IS_DEBUG_BUILD;
@@ -104,6 +110,7 @@ public class SettingsFragment extends PreferenceFragmentCompat
 	public static final String TOR_NAMESPACE = TorConstants.ID.getString();
 	public static final String LANGUAGE = "pref_key_language";
 	public static final String NOTIFY_SIGN_IN = "pref_key_notify_sign_in";
+	public static final String TOR_LOCATION = "pref_key_tor_location";
 
 	private static final Logger LOG =
 			Logger.getLogger(SettingsFragment.class.getName());
@@ -112,6 +119,7 @@ public class SettingsFragment extends PreferenceFragmentCompat
 	private ListPreference language;
 	private ListPreference enableBluetooth;
 	private ListPreference torNetwork;
+	private CheckBoxPreference torBlocked;
 	private CheckBoxPreference notifyPrivateMessages;
 	private CheckBoxPreference notifyGroupMessages;
 	private CheckBoxPreference notifyForumPosts;
@@ -150,6 +158,8 @@ public class SettingsFragment extends PreferenceFragmentCompat
 				(ListPreference) findPreference("pref_key_theme");
 		enableBluetooth = (ListPreference) findPreference("pref_key_bluetooth");
 		torNetwork = (ListPreference) findPreference("pref_key_tor_network");
+		torBlocked = (CheckBoxPreference) findPreference(TOR_LOCATION);
+		setBlockedCountries();
 		CheckBoxPreference notifySignIn =
 				(CheckBoxPreference) findPreference(NOTIFY_SIGN_IN);
 		notifyPrivateMessages = (CheckBoxPreference) findPreference(
@@ -189,6 +199,7 @@ public class SettingsFragment extends PreferenceFragmentCompat
 		});
 		enableBluetooth.setOnPreferenceChangeListener(this);
 		torNetwork.setOnPreferenceChangeListener(this);
+		torBlocked.setOnPreferenceChangeListener(this);
 		if (SDK_INT >= 21) {
 			notifyLockscreen.setVisible(true);
 			notifyLockscreen.setOnPreferenceChangeListener(this);
@@ -288,6 +299,14 @@ public class SettingsFragment extends PreferenceFragmentCompat
 		return direction == LAYOUT_DIRECTION_LTR;
 	}
 
+	private void setBlockedCountries() {
+		List<String> countries = new ArrayList<>(asList(BLOCKED));
+		countries.removeAll(asList(BRIDGES));
+		Collections.sort(countries);
+		String format = getString(R.string.tor_location_setting_hint_format);
+		torBlocked.setSummary(String.format(format, join(countries, ", ")));
+	}
+
 	private void loadSettings() {
 		listener.runOnDbThread(() -> {
 			try {
@@ -299,19 +318,24 @@ public class SettingsFragment extends PreferenceFragmentCompat
 				logDuration(LOG, "Loading settings", start);
 				boolean btSetting =
 						btSettings.getBoolean(PREF_BT_ENABLE, false);
-				int torSetting = torSettings.getInt(PREF_TOR_NETWORK,
+				int torNetworkSetting = torSettings.getInt(PREF_TOR_NETWORK,
 						PREF_TOR_NETWORK_ALWAYS);
-				displaySettings(btSetting, torSetting);
+				boolean torBlockedSetting =
+						torSettings.getBoolean(PREF_TOR_DISABLE_BLOCKED, true);
+				displaySettings(btSetting, torNetworkSetting,
+						torBlockedSetting);
 			} catch (DbException e) {
 				logException(LOG, WARNING, e);
 			}
 		});
 	}
 
-	private void displaySettings(boolean btSetting, int torSetting) {
+	private void displaySettings(boolean btSetting, int torNetworkSetting,
+			boolean torBlockedSetting) {
 		listener.runOnUiThreadUnlessDestroyed(() -> {
 			enableBluetooth.setValue(Boolean.toString(btSetting));
-			torNetwork.setValue(Integer.toString(torSetting));
+			torNetwork.setValue(Integer.toString(torNetworkSetting));
+			torBlocked.setChecked(torBlockedSetting);
 
 			if (SDK_INT < 26) {
 				notifyPrivateMessages.setChecked(settings.getBoolean(
@@ -371,6 +395,7 @@ public class SettingsFragment extends PreferenceFragmentCompat
 		// - pref_key_notify_sign_in
 		enableBluetooth.setEnabled(enabled);
 		torNetwork.setEnabled(enabled);
+		torBlocked.setEnabled(enabled);
 		notifyPrivateMessages.setEnabled(enabled);
 		notifyGroupMessages.setEnabled(enabled);
 		notifyForumPosts.setEnabled(enabled);
@@ -430,8 +455,11 @@ public class SettingsFragment extends PreferenceFragmentCompat
 			boolean btSetting = Boolean.valueOf((String) newValue);
 			storeBluetoothSettings(btSetting);
 		} else if (preference == torNetwork) {
-			int torSetting = Integer.valueOf((String) newValue);
-			storeTorSettings(torSetting);
+			int torNetworkSetting = Integer.valueOf((String) newValue);
+			storeTorNetworkSetting(torNetworkSetting);
+		} else if (preference == torBlocked) {
+			boolean torBlockedSetting = (Boolean) newValue;
+			storeTorBlockedSetting(torBlockedSetting);
 		} else if (preference == notifyPrivateMessages) {
 			Settings s = new Settings();
 			s.putBoolean(PREF_NOTIFY_PRIVATE, (Boolean) newValue);
@@ -480,39 +508,33 @@ public class SettingsFragment extends PreferenceFragmentCompat
 		builder.show();
 	}
 
-	private void storeTorSettings(int torSetting) {
-		listener.runOnDbThread(() -> {
-			try {
-				Settings s = new Settings();
-				s.putInt(PREF_TOR_NETWORK, torSetting);
-				long start = now();
-				settingsManager.mergeSettings(s, TOR_NAMESPACE);
-				logDuration(LOG, "Merging settings", start);
-			} catch (DbException e) {
-				logException(LOG, WARNING, e);
-			}
-		});
+	private void storeTorNetworkSetting(int torNetworkSetting) {
+		Settings s = new Settings();
+		s.putInt(PREF_TOR_NETWORK, torNetworkSetting);
+		mergeSettings(s, TOR_NAMESPACE);
+	}
+
+	private void storeTorBlockedSetting(boolean torBlockedSetting) {
+		Settings s = new Settings();
+		s.putBoolean(PREF_TOR_DISABLE_BLOCKED, torBlockedSetting);
+		mergeSettings(s, TOR_NAMESPACE);
 	}
 
 	private void storeBluetoothSettings(boolean btSetting) {
-		listener.runOnDbThread(() -> {
-			try {
-				Settings s = new Settings();
-				s.putBoolean(PREF_BT_ENABLE, btSetting);
-				long start = now();
-				settingsManager.mergeSettings(s, BT_NAMESPACE);
-				logDuration(LOG, "Merging settings", start);
-			} catch (DbException e) {
-				logException(LOG, WARNING, e);
-			}
-		});
+		Settings s = new Settings();
+		s.putBoolean(PREF_BT_ENABLE, btSetting);
+		mergeSettings(s, BT_NAMESPACE);
 	}
 
-	private void storeSettings(Settings settings) {
+	private void storeSettings(Settings s) {
+		mergeSettings(s, SETTINGS_NAMESPACE);
+	}
+
+	private void mergeSettings(Settings s, String namespace) {
 		listener.runOnDbThread(() -> {
 			try {
 				long start = now();
-				settingsManager.mergeSettings(settings, SETTINGS_NAMESPACE);
+				settingsManager.mergeSettings(s, namespace);
 				logDuration(LOG, "Merging settings", start);
 			} catch (DbException e) {
 				logException(LOG, WARNING, e);

briar-android/src/main/java/org/briarproject/briar/android/splash/SplashScreenActivity.java

@@ -7,11 +7,11 @@ import android.os.Handler;
 import android.support.v7.preference.PreferenceManager;
 import android.transition.Fade;
 
+import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.system.AndroidExecutor;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BaseActivity;
-import org.briarproject.briar.android.controller.ConfigController;
 import org.briarproject.briar.android.login.OpenDatabaseActivity;
 import org.briarproject.briar.android.login.SetupActivity;
 
@@ -27,7 +27,7 @@ public class SplashScreenActivity extends BaseActivity {
 			Logger.getLogger(SplashScreenActivity.class.getName());
 
 	@Inject
-	protected ConfigController configController;
+	protected AccountManager accountManager;
 	@Inject
 	protected AndroidExecutor androidExecutor;
 
@@ -43,7 +43,7 @@ public class SplashScreenActivity extends BaseActivity {
 
 		setContentView(R.layout.splash);
 
-		if (configController.accountSignedIn()) {
+		if (accountManager.hasDatabaseKey()) {
 			startActivity(new Intent(this, OpenDatabaseActivity.class));
 			finish();
 		} else {
@@ -64,12 +64,12 @@ public class SplashScreenActivity extends BaseActivity {
 			LOG.info("Expired");
 			startActivity(new Intent(this, ExpiredActivity.class));
 		} else {
-			if (configController.accountExists()) {
+			if (accountManager.accountExists()) {
 				LOG.info("Account exists");
 				startActivity(new Intent(this, OpenDatabaseActivity.class));
 			} else {
 				LOG.info("Account does not exist");
-				configController.deleteAccount(this);
+				accountManager.deleteAccount();
 				startActivity(new Intent(this, SetupActivity.class));
 			}
 		}